on separation of conversations

Raindrop’s main goal is to separate personal conversations from bulk email that’s less relevant to you.

(dead link) Source (http://technews.am/conversations/download-squad/mozilla_raindrop_dont_call_it_another_google_wave)

when it’s better to use Twitter over email

When avoiding junk-mail filters is a priority
When you need a handy universal contact page
When you want to tell friends about the newest dancing baby video
When your group needs a fast way to share

(http://www.macworld.com/article/143400/2009/10/twittervsemail.html)