The growing popularity of RSS seems to know no bounds. Not long ago if you wanted to get RSS feeds onto your desktop, you had to install a separate program or plug-in, otherwise known as a news aggregator, such as Pluck or FeedDemon. Today RSS is being built directly into browsers such as Firefox and Safari, and signs now indicate that RSS will soon be a standard feature of Web-based e-mail offerings. Last week Yahoo! announced that it was building RSS into its new AJAX based Yahoo! Mail beta. The new service lets you work with syndicated news stories just like you would a standard e-mail message. The feeds arrive in a separate folder from your Inbox, but you can open and forward the individual news items as if they were standard e-mail messages.