Friend Feed is a great social network that allows you to auto-post on other social networks, and aggregate feeds from them as well. They do not have any known CAPTCHA necessity and the basic Subscribe, PM, and Auto-Gather user ID list features work in this plugin.
Use webDOMinator as a fully programmable friend adder, mass messenger, web scraper, and mass mailer on sites like MySpace, Facebook, Friendster, Tagged, Tagworld, Digg, Twitter, Yahoo, Youtube, StubmleUpon, Reddit, Del.icio.us, Mixx, GarageBand Mixi, Mog, Dopetracks, Fropper, Hi5 and basically any social network or web page that you want to interact with automatically. Promote your music, your product or your event with this powerful marketing tool. More flexibility than Badder Adder or Friend Blaster Pro. Whether you're a band or someone looking for a good affiliate marketing tool, we offer the best in online social marketing and promotion. Enjoy the 14 day free trial on us!