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There are several tools you can use. Here are a few:

SEOquake is a toolbar for Firefox that gives you a list of outbound links and tons of other parameters

SEOchat has a link analyzer tool that checks internal and outbound links

Linkvendor also has an outbound link analysis tool

Hope this helps!

Here are a few that I've come across:

http://www.seochat.com/seo-tools/site-link-analyzer/

http://www.linkvendor.com/seo-tools/outbound-links.html

http://www.searchenginegenie.com/tools/chkOutboundLinks.html

Hope these help!