Pixsy is indeed a upgraded image search. Apart from the fact that it does not use any third party service of Google or Yahoo! search like backbase , it is a powerful system of its own.

Image search is the fastest growing vertical search category on the Internet today. To address the problem of finding the growing amount of visual material available online, Pixsy has developed a proprietary visual search engine that delivers images based on the context surrounding those images. To find that context, our spider aggregates RSS feeds and extracts photos and video thumbnail images from those feeds and – in most cases – from the stories, articles, blogs, reviews and stores linked from those feeds. Our spider then indexes and organizes those images into categories, and makes them searchable for users.