Twitter has finally made its people search algorithm a little more useful
. It's integrated the ability to search for people using associated terms. For instance searching for 'Tech' might bring up a bunch of tech journalists or publications, where as searching for 'hip hop' will bring up some hip hop artists as suggestions. Previously the Twitter people search would only bring up people with the keyword search term actually in their username.
Twitter has also rolled out an Advanced Search page
, which lets you drill down with exact phrase matching, and other conditional searching additions. It'll even let you search using positive, negative, question, and retweet inclusion modifiers, with the best bit being that you can use emoticons to do it. :)