Twingly, The blog search engines has added another feature to their blog search engine, Twingly will now offer users to search on website that provides micro blogging services including Twitter, Jaiku, Identi.ca, Bleeper.de, Bloggy.se and Pownce archives. Twingly calling it as world’s first federated micro blog search. Twingly targeting to index all micro blogging websites and  they are also asking users to suggest them any micro blogging service they through Twingly feedback

Some improvements are still to come:  Twingly micro blog search i\team is working hard to bring some more feature to micro blog search engine. some of features are listed below:

• search is not real-time at the moment, expect about a five minute delay (sometimes more if the result page ends up in the cache).
• Jaiku comments are not indexed.
• Verbs like save, retweet, reply, comment should be implemented in the search result.

Visit Twingly Micro Blog Search Website