
There were more than 25 billion tweets sent in 2010 and here are the top Twitter trends from all those tweets.
Here are the top 10 overall trending Tweet topics in 2010:
1. Gulf Oil Spill
2. FIFA World Cup
3. Inception
4. Haiti Earthquake
5. Vuvuzela
6. Apple iPad
7. Google Android
8. Justin Bieber
9. Harry Potter & the Deathly Hallows
10. Pulpo Paul
You can find trends for each category at Twitter’s trending microsite.
Twitter has become one of the best ways to stay up to date with the news and current ‘Trends’ as they’re called on the service. However, in order to stay informed on one particular subject you have to search for it manually.
TweetAlert is an app that will follow subjects and trends that you have an interest in and when one is tweeted, it will be re-tweeted by your account so you can see it there when you next log in.

It literally takes less than thirty seconds to sign up to a trend using the service by filling in a quick form which you can see above. After that you’ll see the trends and topics on your twitter homepage.
It’s available here: http://code-or-die.com/tweetalert/