I don't have any real good idea what you are doing right now -- Twitter is already partially organized by Hashtags, what more does your website do? Is it lookin

I don't have any real good idea what you are doing right now -- Twitter is already partially organized by Hashtags, what more does your website do? Is it looking for bigrams and trigrams to determine tags? If so 140 characters might not yeild you much useful data. If not, could you explain it a little more?