1. A method of performing a search using a general subdomain including general content and one or more vertical subdomains, each vertical subdomain including specialized content, the method comprising: receiving a search query; determining personal information for a user; causing a search to be performed in a general subdomain of general content using the search query; determining a vertical subdomain based on the personal information; and causing a search to be performed in a vertical subdomain of specialized content using the search query.