Over the past year, I've been using Yahoo's Flickr, which is a cutting-edge photo sharing site. In fact, the picture here is linked from my Flickr account.
Flickr is easy to use and powerful. A big part of this is because it uses a programming approach called AJAX.
While AJAX has been around since the late 1990s, it was really Google that put it on the map -- with its slick GMail product (the company's latest spreadsheet product is also written in AJAX). Basically, with AJAX, you can do things like drag-and-drop, auto-fill, tags, keyboard short-cuts, in-line editing and so on.
Now, Yahoo! is adding AJAX pizzazz to its companion site, Yahoo Photos. In fact, Yahoo Photos is #1 on the Web, with about 30 million users. In all, there are 2 billion photos.
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