# Sign on Twitter What's it for? Kristine Wirth Knew.

I have been on and off Twitter for a while, but still wasn't quite sure what the # sign meant when it was placed in front of certain words. I finally Googled it today and found a blog post from Kristine Wirth. She explained it perfectly!

Here's part of what she wrote. Thanks, Kristine. I learn something new everyday thanks to people like you.

The hash mark (#) before a word in a post allows you to tag that post for that word. However, in order to get tracked via a hash tag, you need to opt-in and follow http://twitter.com/hashtags. Once you’re following Hashtags, every time you make a post in Twitter and tag it with a hash mark like so: #iPhone, it will then show up as a real-time post on http://www.Hashtags.org.

If you then visit Hashtags.org, you can click on any tag and it will show you all of the posts that have been tagged with that keyword.

Read more of Kristine's post at http://kristinewirth.com/that-mysterious-sign-in-twitterwhat-does-it-mean/. Thanks for the info Kristine.

Tags: Amy Mauzy | Kristine Wirth | #sign | Twitter | Twitter Explainations