GigaTweet is counting the number of Twitter messages and it shows that there will be 10 billion tweets soon.

WordPress.com turned on PubSubHubbub support for more than 10.5 million blogs. (Via WordPress.com Blog)

Location based social network Foursquare partners with Vodafone UK. (Via TechCrunch Europe)

After shutting down comments on Yahoo! News in 2006 users can now comment on news articles again. (Via paidContent)

Google Wave gets a new and better robots API that can push information into waves, robots can specify how much information they want to get back from a wave and what events it needs to respond to. (Via Google Wave Developer Blog)

1.5 million apps are downloaded from the Nokia Ovi store each day. (Via MobileCrunch)