I love that it allows me to keep up with those people; I hate what they find interesting to post. IOW: because I follow folks on Twitter by "subject" and not b

I love that it allows me to keep up with those people; I hate what they find interesting to post. IOW: because I follow folks on Twitter by "subject" and not by friendship, I get lots of really relevant interesting content. Perhaps I'm just not using it properly? Like, I miss communities concept from Orkut...