Pasadena-based Perfect Market Technologies announced Monday that it has partnered with social networking web site Xanga, to provide its Snap web site previews to the site. Xanga users will have the ability to see linked web site previews from their web pages. Perfect Market operates Snap.com, an online web search engine. The firm's Snap Preview Anywhere service is a service that allows any web site user to add previews of linked web pages.