This is the Web interface for your iDisk’s Public folder, where others can download or upload files.

Are there any programs for Macs that can send 20 large JPEGs in one email?

If you need to send large files to someone, email may not be your best option due to size limitations that most email service providers place on messages. For example, Gmail has a limit of 20MB per message and .Mac has a limit of 10MB. Instead, it’s better to send large files through a secure file-delivery website like YouSendIt (www.yousendit.com), which lets you send and receive files up to 2GB for free.

If you’re a .Mac member ($99.95 per year, www.apple.com/dotmac), you can pay for up to 30GB of storage on your iDisk, where you and your colleagues can exchange files. In the Finder, mount your iDisk by choosing Go > iDisk > My iDisk and then drag the files you want to share into your Public folder. Then anyone can point their Web browser to http://idisk.mac.com/username-Public (substituting your .Mac username for username) and download those files, or upload files to your Public folder. Even better, if your recipients are using Macs, they can connect to your Public folder right from the Finder (no browser needed) by choosing Go > iDisk > Other User’s Public Folder and typing in your .Mac username. To add a password to your Public folder, go to System Preferences > .Mac, click the iDisk tab, and check the box to password-protect your Public folder. Then when other users log in to your Public folder, they should use the username “public” (without the quotes) along with your password.

One last option: If you have your own website, you can transfer large files to your site’s storage space with an FTP app such as Transmit ($29.95, www.panic.com), Yummy FTP ($25, www.yummysoftware.com), Fetch ($25, www.fetchsoftworks.com),

or Cyberduck(free,www.cyberduck.ch). Then give your recipients a URL representing the path of where you uploaded your files, and they can type that into their browser to download your files. Contact your Web-hosting company to get instructions for password-protecting your directories.