XML (eXtensible Markup Language)

Resources in this category:

RSSCalendar
http://www.rsscalendar.com/Default.aspx

"RSSCalendar is an exciting new way for individuals and organizations to share their calendars with family, friends, and co-workers - utilizing the latest in "Really Simple Syndication" (RSS) technology, including RSS channel creation and aggregation." Requires free registration for use.

Site Map Builder
http://sitemapbuilder.net/default.aspx

Generates a "Google SiteMap XML . . . which you can place into your root directory for Google to index your web site. The sitemap XML follows a certain syntax that Site Map Builder will generate for you." Site is not affiliated with Google. Offers a web-based version and a downloadable, freeware version.

ZoomClouds
http://zoomclouds.egrupos.net/

Create your own tag cloud for your Web site in three easy steps. "Tag clouds are cool, informative, appealing representations about what's happening in your blog, or anywhere else. With ZoomClouds you can put in a matter of minutes a tag cloud in your site, based on whichever RSS feed you like."