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Open links to other sites in a framed window, Add a frame linking back to your site, Supports a unlimited amount of links.
Price: Freeware

Framer is an extremely useful tool in so many ways. Similar to the techniques used by large corporations such as Hotmail, Framer allows you to keep your visitors within your website by placing a frame on top of websites which are outside of yours. This gives your visitors the opportunity to return to your site at any given time, so you don't lose any visitors/potential customers. The script contains very few variables, but gives you maximum customization.
Price: $4.95