One of the things I love about Flickr is the Groups feature. There are groups for just about any subject imaginable. My favorite is the Historic Florida group. Not only are the photographs fabulous, but often the photographers will include information on the subject of the photo too. Then there’s the discussion section of the group where not only the photos are discussed but often the conversation moves into details about the place itself. If you would like to learn more about a particular area, look for a group sharing photos of that area and you’ll not only see the sites but you’ll have a chance to connect with the photographers who may well be locals with lots of useful information to help you in your research.
TIP: I take advantage of the RSS feed included with each group (at the very bottom of the group page) to have new additions to the group delivered to my newsreader.