I'm still curious about the business model of Twitter. It feels like it has become an appendage for mainstream broadcasters and celebrities. If you have a big name, you're probably going to amass a million followers because Twitter will place you on its Suggested User List (SUL). And because new users will automatically subscribe to an SUL celeb, they will stay subscribed even when the celebrities stop tweeting. Unlike the SUL, hand-rolled Twitter lists provide interesting reading. They're one part endorsement and one part humour. I've made my own "owes-me-a-pint" list and hope it extends my very own personal Christmas cheer.
During the past three years, Twitter has been most helpful in curating content for me. I use mobile phone RSS feeds to pull information from 12 Twitter accounts onto the screen of my phone where they're often as informative as news headlines. I've learned that even when some people stop tweeting, they continue marking content as "favorites" and those favs are part of the genre of curated content.
I have discovered ways to boost blog readership, to increase the number of views of a Flickr image and to attract viewers to my movie clips by posting summaries of that kind of content on Twitter. I've also seen a bothersome rise of self-promotion, petulance and pettiness on Twitter. Like in the real world, packs of little minds run around on Twitter but the wonderful thing about Twitter is that you can just unfollow the pettiness with a single click.
When even that gets to be too much work, I head over to Foursquare to see if any special offers have surfaced near venues where I enjoy spending real time and money. Or I go with the flow on Friendfeed while waiting for the latest episode of FFunderdercats to drop.
I am @topgold on Twitter and on Jaiku.