I have been having a lot of fun with Flickr lately. They have uploading tools available which you can download and install on your computer. Then, when you want to upload a bunch of files, you can just queue and upload an entire directory (optionally specifying a set for them to get into and tags for that set), and walk away from your computer while the entire upload happens.
I should mention that ever since I got a digital camera back in the summer of 2004, I've taken lots of pictures, given any excuse. I've taken pictures of conventions, parties, places that I've visited, people that I visited, etc. The last I checked, my entire "pictures/" directory on my hard drive totals 2.1 Gigs over the last 2.5 years. That means there is plenty more for me to upload!
Here are highlights from the 3 sets that I've uploaded so far:
Pictures taken at The Western Pennsylvania National Wild Animal Orphanage (Anthrocon's charity in 2006):
And finally, pictures taken at The Dexcon 9 gaming convention last July: