Prevent Spiders from Crawling Links
If you have database table that has a "web address" field type (ie it displays links on your website), you can now add the "rel=nofollow" attribute to your links to prevent search engine spiders from crawling them. Although you would likely want to allow spiders to follow the links, there might be times when you want to prevent it. You can now set a default for the entire field in the database by clicking on the field header. And you can override the default per individual link if you wish by simply editing the individual link.