Twitter Blog- Measuring Tweets – Twitter is seeing 50 million tweets each day, up from 2.5 million this time last year.

Seesmic’s Web App Now Does Threaded Twitter Conversations – While it still doesn’t beat out software clients, it’s a great choice if you can’t install software on your machine (say, at work).

YouTube to kill IE6 support on March 13 Not twitter news, but to let you know that if you are still using IE6 it is way past time for you to get up to IE8. Surprising to me how many people I know still use IE6 on their home computers.