Do you ever need to share a few photos (or a bunch) with people and don't know how to do it? The website http://min.us should cure what ails you. Just drag pictures onto the site, grab the link, and send off to someone. Genius.
What a beautiful concept and executed product. AirDropper lets you ask someone to send you a file, gives them a web interface for doing so, an automatically lands the thing in your DropBox account. If you're not using DropBox, why not? It's amazing. It lets you have 2gb of storage space free (or more if you pay) and syncs that space up on any computers you own. Automagically.
DropBox is a product that I'm coming to realize I couldn't live without.