Macs often use Fetch; you may also use Interarchy (the newest Anarchie).

PCs can use WS_FTP, SmartFTP, or search for other options under "FTP clients" at c|Net’s downloads

You may also upload your data using the FTP feature of your web design software. (If you’re using free hosting, your host’s design software will allow you to construct and save pages right to their server, eliminating the need to FTP; additional files can be uploaded following the instructions provided by the software, or can be uploaded with FTP. Check with your host for more information.)

Your web host will provide you with FTP host name (ftp.yourdomain.com or 216.202.19.202, for example), user ID and password information. When you open your FTP software you will have to enter these pieces of information to open a connection to the host’s server. Some FTP programs allow you to drag and drop—move folders or files from your hard drive to the directories set up on your host’s server. Remember that files and folders with the same names will be overwritten when copied to the directory. Make sure that all the files necessary for your site are uploaded to the server.

Once your files and folders are on the host’s server, your site is live! Open your browser, type in your domain name and look around. Look for broken links, Check the site on different browsers and platforms, if you have that option. (Go to a local library and check it out from their computers, for example, or look at it on a friend’s computer.) Get your friends, family, and coworkers to look at the site, too, and give you feedback. Experiencing your site through many computers, browsers, and viewers will help you to fine-tune your pages for your audience.