Twitter has just implemented a massive set of improvements to search, allowing you to search just within tweets of people you follow, autocomplete, and related results including similar hashtags and usernames. These will all help you find what you’re looking for even if you’re unsure of the exact hashtag or someone’s handle. Friday’s updates are already live on Twitter.com, and related search suggestions, autocomplete, and spelling corrections are also now available in Twitter for iPhone and Android. You can try them out now with a search for “Jeremy Lin” which returns his username and the real names of teammates as suggestions, plus a filter for tweets from People You Follow. Read the full story at Tech Crunch.