Rules- https://bitcointalksearch.org/topic/unofficial-list-of-official-bitcointalkorg-rules-guidelines-faq-703657
Follow the forum guidelines
Some boards which are obvious were left out of the list
Section: Bitcoin
Bitcoin Discussion - "General discussion about the Bitcoin ecosystem that doesn't fit better elsewhere. News, the Bitcoin community, innovations, the general environment, etc. Discussion of specific Bitcoin-related services usually belongs in other sections."
Legal (child board of Bitcoin Discussion) - Discussion about laws regarding Bitcoin, it's companies (in general), "court cases, complaints, regulatory actions, etc."
Press (child board of Bitcoin Discussion) - Articles about Bitcoin with links with the appropriate title format.
Meetups (child board of Bitcoin Discussion)- Bitcoin related meetups, conferences, discussion and announcements of such events.
Development & Technical Discussion - "Technical discussion about Satoshi's Bitcoin client and the Bitcoin network in general. No third-party sites/clients, bug reports that do not require much discussion (use github), or support requests. "
Wallet software (child board of Development & Technical Discussion) and it's child boards - Discussions, technical support about other clients such as Electrum, Armory, a variety of hardware wallets, etc.
Mining - Discussion about Bitcoin mining in general (discussions that don't fit in its child boards).
Mining support (child board of Mining) - Problems with mining (rig stopped/doesn't start, miner not hashing), "getting started" guides.
Pools (child board of Mining) - Discussion about Bitcoin mining pools, announcements of such pools. Multipools with Bitcoin as a possible mining cryptocurrency are welcome.
Mining software (miners) (child board of Mining) - Discussion, announcements of Bitcoin mining software.
Hardware (child board of Mining) - Discussion about Bitcoin mining hardware, new hardware announcements. No trades.
Mining speculation (child board of Mining) - Speculation about mining hardware (will this rig break even, when, etc.), difficulty (predictions about it rising/falling), profitability (is this rig profitable, should I mine with such price of electricity, etc.), etc.
Bitcoin Technical Support - Problems, issues with the Satoshi's Bitcoin client (bitcoin-qt, bitcoind). Issues with other clients should go to the Alternative clients board.
Project Development - Organization of Bitcoin and related projects (sites, software not yet developed/in development), bounty campaigns, advertising etc. No hiring here although "looking for partners" threads should be here.
Section: Economy
Economics - Discussion about economics in general: this includes both Bitcoin and fiat.
Speculation (child board of Economics) - Speculations about Bitcoin's price, predictions.
Marketplace - Business / trading with Bitcoin related threads that don't fit into other sections.
Goods (child board of Marketplace) - Trades of physical goods on-forum for Bitcoin. If you are selling goods on another site (e.g. have an online store), it doesn't belong here.
Collectibles (child board of Goods) - Trades of physical collectible items ("Including physical Bitcoin coins" as the board's subtext states). If you are selling these collectibles on another site (e.g. have an online store), it doesn't belong here.
Digital goods (child board of Goods) - Trades of digital goods on-forum for Bitcoin (except for invites and accounts). If you are selling goods on another site (e.g. have an online store), it doesn't belong here.
Invites & Accounts (child board of Digital goods) - Trades of site invites and accounts. If you are selling accounts on another site (e.g. have an online store), it doesn't belong here.
Computer hardware (child board of Goods) - Trades of mining hardware on-forum for Bitcoin. If you are selling goods on another site (e.g. have an online store), it doesn't belong here.
Services (child board of Goods) - Services provided/demanded on-forum for Bitcoin. If you are providing/demanding services on another site (e.g. have a hosting site), it doesn't belong here.
Currency exchange (child board of Marketplace) - Buying/selling bitcoins using other fiat currencies.
Gambling (child board of Marketplace) - "Gambling and all "investments" that are so risky they might as well be gambling (HYIPs, pyramid schemes, etc.)"
Games and rounds (child board of Gambling) - "Spreadsheet games, forum-based games, and discussion of individual rounds/games on other sites." All Bitcoin giveaways, raffles, contests also go here.
Investor-based Games (child board of Gambling) - "Games where the main factor is whether or not new "investors" join the game. Also any Bitcoin-denominated investment product with an APY far above the reasonable market rate. " That includes ponzis, HYIP and other "invest and get tons of cash tomorrow" type sites.
Gambling discussion (child board of Gambling) - "Discussion of sports games and other gambling-related topics which are separate from games and services themselves. ".
Lending (child board of Marketplace) - "Lend BTC or get loans of BTC." This includes loans to individuals and loans to companies.
Long-term offers (child board of Lending) - "Long-term offers to lend BTC or receive loans of BTC, including deposit accounts. "
Securities (child board of Marketplace) - "This section is for topics about individual Bitcoin bonds, stocks, etc."
Auctions (child board of Marketplace) - "Auctions may optionally be placed in this section. Topics and replies in this section can't be modified or deleted. "
Service Announcements (child board of Marketplace) - "New services and significant information about existing services. Do not create excessive "announcements" just to advertise your service." All Bitcoin service website announcements should go here.
Micro Earnings (child board of Service Announcements) - "Faucets, rotators, web based games, and other services that are primarily based on ads and/or micropayments." That includes a lot of websites that payout either dust or near dust amounts of Bitcoin.
Service Discussion (child board of Marketplace) - "Comments and questions about specific Bitcoin services or about all Bitcoin services." This includes discussion of Bitcoin sites (both specific and in general), discussion about technical problems of such sites (API doesn't work, etc.).
Web Wallets (child board of Service Discussion) - "Discussion about online wallets.". This includes client-side Javascript based wallets like Blockchain.info, as well as exchange accounts that double as a wallet like Coinbase.
Exchanges (child board of Service Discussion) - "Discussion about specific exchanges, Bitcoin ATMs, and Bitcoin debit cards. ". Emphasis on Bitcoin - discussions about altcoin issues on exchanges don't belong here.
Trading Discussion - "Discussion about doing business with Bitcoin. Best trading practices, delivery methods etc.". Specific site, exchange discussions don't go here. If you are having problems conducting a trade, need to know the best way to ship a miner to a certain place then this is the place to do it.
Section: Other
Politics & Society - Discussion about politics, recent event in the world - both related and unrelated to Bitcoin.
Beginners & Help - All primitive questions (to pros like us Cool) like "what are ASICS", "who is satoshi" and "what is mining" should stay here.
Off-topic - "Other topics that might be of interest to bitcoiners"
Serious discussion - "More serious discussion. No advertising of any kind. No junk posts. ". Unlike in most other main section boards, altcoin talk here is OK. You must be a Jr Member to post in this board. Posts in this board do not increase your post count.
Ivory Tower (child board of Serious discussion) - "Even more serious discussion. [Full] Members and above only. No advertising of any kind. No junk posts.". Same as Serious discussion in terms of altcoin content. Posts in this board do not increase your post count nor do they count towards your activity.
Section: Alternate cryptocurrencies
Altcoin Discussion - "Discussion of cryptocurrencies other than Bitcoin. Note that discussion of how these currencies *relate to* Bitcoin may fit in other categories. ". Generic coin discussion threads or discussion about altcoin prices do not belong here.
Announcements (Altcoins) - Altcoin announcements, generic (usually announcement like) coin discussion threads.
Tokens (Altcoins) (child board of Announcements (Altcoins)) - Altcoin token (an altcoin entity / thing that relies on another altcoin's infrastructure to function) announcements, generic (usually announcement like) token discussion threads.
Mining (Altcoins) - Altcoin mining discussion. This includes discussion of PoW mining, PoS staking as well as other mining-like activity (e.g. dedicated devices, software, troubleshooting etc.).
Pools (Altcoins) (child board of Mining (Altcoins)) - Discussion and announcements of altcoin mining pools.
Marketplace (Altcoins) - On-forum sale of goods and services either altcoin related or sold for altcoins.
Bounties (Altcoins) (child board of Marketplace (Altcoins)) - "Altcoin bounties and ad campaigns". Bounties, advertisement campaigns, announcement of external giveaways (that do NOT require posting on Bitcointalk) and other similar threads belong here. Discussions about such campaigns / services do not belong here.
Service Announcements (Altcoins) (child board of Marketplace (Altcoins)) - Announcement of external services that are directly related to or accept altcoins.
Service Discussion (Altcoins) (child board of Marketplace (Altcoins)) - Discussion of altcoin services (both external and on-forum). This includes discussions about bounties.
Speculation (Altcoins) - Discussion about altcoin prices. This includes discussion about portfolios ("what altcoins are you holding?"), price predictions ("is coin X going to reach 10$ next week?" or "why is this coin's price so low?") and general speculation ("are the altcoin markets crashing?").
Section: Local
All Local boards - Discussion of various topics in the appropriate language. Posting translated coin announcements is limited to languages that have their own section (a.k.a. dedicated board with sub-boards).