At the Twitter Conference #140tc 14 days ago, I asked people in the audience to tweet me in lieu of business cards so I can follow up. So today, I search.twitter my name @pkitano and noted that only the last 12 days are indexed, and the new contacts I made at the conference are now history. Similarly, it’s impossible to search across DMs on Twitter.
With Twitter logging over 10 million tweets per day, it may be just database overload that compromises search functionality to limit queries to the last 12 days. In any case, the power of Google’s Gmail email system is its ability to search across all emails since inception. Once Twitter is capable of doing this, people will use Twitter the same way they use Gmail – to chronicle their Twitter communication for reference purposes.