Microsoft’s MIX online lab actually contains some pretty cool stuff. Take The Archivist, for example. Microsoft’s newest MIX online project is still in alpha, but shows immense promise. The Archivist is, at it’s most simplest, a tool for searching Twitter. Enter a word or term or either including a Twitter operator and The Archivist will return a load of useful information including tweet volume over time, users with the most relevant tweets and most relevant URL. Tweets are by definition tiny pieces of information, but combine them and throw in some visualization and it’s a powerful mix. Because…