how to mine new coin? who can give me a url that can tell me that. 
Depends on the coin.
Usually, the easyest way is to download the wallet, open the debugconsole and type "setgenerate true". This being said, it's often also the slowest way
A different option is to edit the coin.conf file in your roaming profile (or the hidden folder if you're using linux):
Code:
server=1
rpcuser=USRNAME
rpcpassword=RANDOMPASSWORD
rpcallowip=127.0.0.1
rpcport=8332
then download mining software to connect to this server... Either using an asic, your GPU or your CPUrpcuser=USRNAME
rpcpassword=RANDOMPASSWORD
rpcallowip=127.0.0.1
rpcport=8332
A thirth option would be to join a pool (if it exists) and follow the pool tutorial (if exists).
This is not true for 100% of the coins. Some can be mined this way, others cannot