13. The system of claim 12 , said expertise rating system further configured to update an expertise rating for a particular user.
12. A system comprising: a lexicon comprising technical words, said technical words being related to a technical domain and said technical words having a predefined user expertise level; an expertise rating system configured to: receive a search query; determine one or more technical search terms from said query; and determine an expertise rating based on said technical search terms using said lexicon; and a search system configured to: perform a search using said search query and generate search results; and present said search results based on said expertise level.