Twitter published on their business site the so called Twitter 101 – A Special Guide.  It was written by Twitter with Sarah Milstein who is a consultant specializing in Twitter for business, and the co-author, with Tim O’Reilly, of The Twitter Book.

What is Twitter and how do I use it?
There are several sections. First [...]

FriendFeed now offers real-time search. As announced on their Blog you just enter a search query as usually and you see real time results.

Starting on Saturday 12.01 a.m. EDT Facebook users can choose a personalized URL for their profile as announced on the Facebook Blog. That means that the URL which is visible in Search Engines will actually make sense and is not just an ID.
Of course Facebook isn’t doing anything new here but only offering what others [...]