Austin-based itzbig, which provides job matching technology to companies, said Tuesday that the firm's has expanded into the Bay Area, and signed up a number of firms in the area. itzbig said that Advent Software, Inc., CNET, eBay, Logitech, Omnivision, Salesforce, Sanmina and Yahoo! are among the companies which have signed up for the company's services. itzbig develops an online service focused on matching professionals with career opportunities at technology companies.