I’m very pleased with YouSendIt.com. For no charge you can send files up to 100 megabytes in size to as many as 100 other people. You can pay a fee for larger files, more people, or added security. It’s easy to use — you just need to set up an account and establish a password — and the service will send an e-mail straight to recipients telling them the file is available. (They have seven days to download it, again unless you pay extra for more time.) Today I sent a zipped folder of photos as well as a short video. Very cool.