how to best maintain several Facebook and Twitter and as flikr account?

If accounts are not very many, just put different browsers store different cookies, and log in to them. In addition protects from mistakes like, "Oh, the window was wrong."

for Twitter, you can use any thread with a desktop client such as tweetdeck. he knows how to work with multiple accounts and not just Twitter.

bestpersons.ru not very comfortable: everyone was trying to figure out what to do with this Crossposting, but in the end nothing came of it.
Can still that advise?
By the way, to work in multiple browsers is a good idea, but this kind of posting order, distracting and generally not very comfortable.

view to the side bestpersons.ru and any other
\r
unfortunately specific service.

For Twitter you can use hootsuite.com

sudo aptitude install gwibber
\r
although if you activity does not generate revenue, we suggest that it is better to remove these ACCA than steamed programs