Tweet, Tweet: A Crash Course in Twitter for Nonprofits

1. Plain or "Web 1.0" posts
Pro: Clearly communicates that your post is intended for all followers. Inviting.
Con: Followers could perceive you as self-centered if the majority of your posts are all one-way (Web 1.0).

"Web 2.0 is basically a two-way path. It's where people are contributing content, giving each other feedback and having discussions online, back and forth, rather than just a big Web site and e-mail that's pushing out one way," Haydon said.