For me anyway its a one stop place to fill my spongy brain with all the knowledge it thirsts for. It seems to have caught on in such a big way throughout the world, whatever interests you its bound to have found its way onto Twitter.
You may be one of the majority who follow all the famous celebrities in the hope of getting a response from them, don't hold your breath though, I don't know how they can trawl the thousands of daily messages they receive each day, if you do get a response well done. Like this evening Jonathon Ross posted a twitpic link to a rather nice picture of Bono (U2) fixing the tie of actor Clive Owens, it's really refreshing to see informal spur of the moment pictures like that.
For me its the ability to follow a variety of news sources from throughout the world, and receive updates to their websites with links almost immediately. So instead of me spending time going through each website I like, I can instantly click on a news article that interests me and read it straight away.
- BBCNews updates quite a lot during the day with links to news stories, might wish to do a search on twitter for BBC, you'll find numerous other things you can follow like BBCClick which seems to be the most followed BBC twitter, at around 137k followers at the time of writing this. Others include NIreland, Scotland, Wales, Sport
- Kennedy Space Center am fascinated by space travel etc.
- NASA National Aeronautics and Space Administration twitter
- FoxNews this updates more than the BBC news one, can get a little annoying but has some interesting news stories
- Associated Press more news, if you do a search for AP, you come up again with a great number of news outlets like US, technology, business, world, sport, politics
- Music news from NME Magazine/website, or even follow its Editor David Moynihan twitter
- Rolling Stone Magazine
- Mashable is a great website that can help guide you through social media with info on Twitter, Google, Youtube, Facebook etc. I follow Pete Cashmore's twitter from Mashable.
- Newspapers, search for your favourite newspaper, I am sure its bound to have a twitter or two
- Stephen Fry, the great british actor/director/comedian/globetrotter/national treasure.
So get twittering and enrich your life a little, quench that thirst for knowledge.