FriendFeed Enables People/Group Tracking. While Twitter is busy removing features, or half removing them, or whatever — FriendFeed continues its relentless pace at adding new ones. The latest one today is small, but potentially very, very useful. Basically, you can now get emails/IMs/pop-up notifications from any group or individual user on FriendFeed.
15 Fascinating Ways to Track Twitter Trends. One of the great things about TwitterTwitter reviews is that it is a great place to track emerging trends.
When major events or big stories occur, people tweet about it and it inevitably ends up at the top of Twitter Search as a top trend.