Be very careful.  When Twitter first started getting popular, a provider I knew started using it with a profile attached to email address used on her website and in ads (kind of a suggestive email address).  I signed up as a "follower" and then realized that all of her followers were listed at her Twitter profile and everyone I was following was listed at MY Twitter profile page.  Not too hard to connect the dots even if you don't want the dots conencted.  Needless to say, I'm no longer a follower but her "client list" is still out there for the internet public to see.

Twitter can work if you set up safe email addresses, restrictions, etc., though.