I'd say half the people I know are hip to the Twitter. Although the other half of you still haven't caught the Twitter-bug, there are some things you should know about how it works.
That's why I started a new blog over at:
If you're new to Twitter or just want to know more about how to optimize / expand / use it (or how NOT to use it!), feel free to check it out!
Twitter Etiquette 101: The Re-Tweet
Go ahead and post a twitter entry that you found on someone else's page...but give credit where credit is due! Click here for the low-down so's you don't catch the smack-down.