If you use Twitter, make sure you check out these sites:

If you “tweet”, you should read PCMag.com‘s “Top 13 Twitter Don’ts”:

1. Don’t live-tweet TV shows. @CorinneIOZO warns that lots of people use DVRs or watch shows on Hulu these days, so spoiling big moments (“OMG, the smoke monster was actually from outer space! No way!”) is a major no-no. As an alternative, tweet an inside joke that the show’s viewers will get, but that doesn’t give away any important details.

2. Don’t say anything that could get you fired or prevent you from getting a job. @JoelSD points out that if your tweets are public, they really are open to everyone, as has been demonstrated time and time again.

3. Don’t be boring. A simple rule that @kmonson follows is “Never tweet about food or the weather.” If your friends see one more “Good morning Twitterverse!” or “I had some awesome corn flakes for breakfast,” you’re getting un-followed.

4. Don’t forget the Twitter lingo: RT is retweet, and @name is how you respond or give props to someone. Feel free to be generous with both your RTs and your @s.

5. Don’t tweet more than ten times a day, or more than five times an hour, says @JasonCross00. It gets annoying and takes space and attention away from other Twitterers’ links and observations. If you have that much to say, maybe it belongs on a blog.

6. Don’t reply to every single tweet. As @seanludwig points out, it gets old fast.

7. Don’t tweet drunk, cautions @whitneyarner. Just like in real life, your followers might get a kick out of your drunk tweets, but you’ll probably regret them in the morning.

8. Don’t tell us about something cool or life-changing without a link or picture (use a service like TwitPic for your photos, and a URL shortener like TinyURL or is.gd for your links).

9. Don’t retweet something and leave off the original Twitter poster. Always give credit to those who wrote it first.

10. Don’t ignore people who send you a direct message or a reply, says @LanceUlanoff. Part of the Twitter experience involves conversing with your followers when possible.

11. Don’t #hashtag every topic. After a while, your topics will be ignored.

12. Don’t whine about people not following you, pleads @SaschaSegan. If you’re good at providing interesting stuff and you’re patient, you’ll get the followers you crave so badly.

13. Don’t tweet your bathroom habits. Seriously. Just don’t do it.