If you were to log in, you'd be able to get more information on your fellow community member.
Some of the information (only the technical, not related to aspects of photography) can be updated. JPEG images now have the capability to use headers (digital cameras now embed all the technical information inside the headers themselves using the EXIF format). Also it is possible to put comments inside the images, so you dont have to maintain data about image seperately from the image. All you need to do is to put the information in the image once and then program your webserver to pull that information out as and when required (full scale searching based on comments, exposure, camera model...). Umm, hope someone benefits.