Don't know about a program, but start looking at the stats for the site. You'll be able to see what keywords were used to get to your site.

You can do a reverse Google search in Affiliate Elite and it will return all the keywords a website is using, as well as where that site ranks in Google for them. However, I don't know of any software that would work with an expired domain because there generally is no website for it to spider.

Just a crazy thought, no idea if it would work, but perhaps an Affiliate Elite reverse Google search on the Wayback machine listing if it is available?

Have you entered the expired domain in the SEO Competition module of MS as a custom or user added site, or whatever they call it? If you do that, then click on the little arrow by the domain name you can do a search for Anchor text backlinks to the domain. This will tell you the keywords the prior owner was using as anchor text in the backlinks.

SEMRush.com is a good tool for this. It may not get them all( depends on the site) but it will get a lot of them for you.


hth
Bruce

Why not take a look at Webmaster Tools? That shows how certain words/phrases are ranked and how much traffic you get as a result.

you can also check out Site Explorer - Yahoo! Site Explorer (which will list the backlinks to your site). click on a few and check out what keywords are anchor texted backlink to your site and plug them into rank checker or something