Quite an interesting announcement on TechCrunch about Gnip 2.0. Rather than polling a public API to periodically retrieve updates, they act as a broker who can push interesting data to a public endpoint you define whenever anything new appears. This is based on information freely available from a number of online services like Twitter, Friendfeed, Digg, Delicious etc. This could greatly simplify applications that merge together information from a number of sources (I still refuse to say ‘mash’).