Search has been a hot topic since Google successfully monetized it with advertising business model. Besides general Web content search like Google does, there are many other types of searches needed for other Internet companies.
LinkedIn.com, with which most of us have created profiles, offers search capabilities based criteria like keywords, names, location, industry, companies currently with and before, school, etc. Because what Linkedin.com has is well structured data, you and I expect it to do a better job than Web searches. In fact, it does.