Couple cool tools for use with the Flickr online photo sharing site:
quickr pickr – useful for blogging your Flickr photos, especially when you want to post more than one image at a time (the “Blog This” button only supports one image at a time)
Flickr Importr – third-party upload tool for Windows that provides a lot more flexibility towards tagging, etc (I haven’t tried it yet, but it sounds like it works a lot like the iPhoto Flickr plugin)