I have been playing around with Flickr, a new online photo sharing application that is part weblog, part gallery, part file cabinet and all techie fun! It is hard to describe all that Flickr does, but essentially you upload your photos via a separate application or through their website (after registering for free).
Its quick and painless and once done you can give your photos titles, put them in groups, or assign them keywords or 'tags' which make them searchable and able to be cataloged with anyone else's images using the same or similar tags. Another cool feature is the ability to add notes directly to regions of the photos which appear when a viewer mouses over an outlined area - this is a great way to caption in detail without bogging down the casual viewer.
This already seems like alot, but the fun is just starting. Flickr can also post photos for you on another weblog, do automated slideshows from your photo groups, and connect you with other Flickr users allowing you to share your photos in larger groups or to post links on your Flickr page to your photo 'friends'.
Flickr's coolness factor comes into play, however, not just in its functionality but in how these tools are presented and interact with the user. In general Flickr is fast, using a combination of html, PHP and Flash to give you an array of cool tools for uploading, organizing and sharing photos. There are also code snippits for posting teasers and streaming images on other websites and, of course, there is an RSS feed available for each member's photos.
Flickr is free for most users, with some limits on how many photos and groups you can have. They also have a pay version which, for around $50, gives you unlimited storage and groups.
Flickr is evolving (its still in beta) and as its popularity grows so do server and bandwidth problems (there were some problems in early November but they seem to have been taken care of). Flickr does, however, seem to have a very good idea of how to make technology and photography work and even if they don't survive, its safe to say that they have already made some great contributions to the data cloud of the net that are not likely to go away. Give it a go, see what you think.