Its hard to access those sites for being offline, blockchain.info and blockexplorer.com is down too.
Upwork seem to be good and since I'm working as a freelance writer in there, I haven't encountered any issues all throughout the day that I'm working except for bitcointalk and yeah, blockchain.info. This seem to be a horde of people searching for the site causing some malfunction in forum's PHP code or idk. Not into that stuff but the database error has been persisting for over 5 hours now, as I observed. Not much of a nuisance though if you still have life outside the forum.