If you are a genealogist and blog, or if you have any content online which you consider to be proprietary, you may be interested in a few websites which aim to provide easy searching for misuse of your own content on sites across the internet.
CopyrightSpot.com and Copyscape.com are both simple enough to use; simply enter the URL of a page of content you would like to search for (you can also enter the address for an RSS feed), hit search, and the sites report back with sites that have duplicated your text.
No News is Good News?
I used my blog as a trial:.
Both sites got some results, which was impressive, but on a usefulness scale they scored pretty low. Particularly, CopyrightSpot listed a variety of sites which graciously list my blog on a blogroll; as these blogrolls tend to include a snippet of new posts as they scroll through the roll, they come up on the copyright search as potential content crime!
Copyscape came up with similar results, although from some different sites. Because the duplicated text in these cases were dynamic (i.e., they scroll through the roll and then disappear), click-throughs on the results, which would typically highlight occurrences of duplicated text, only resulted in a message saying the sites "appear to have removed your text":
The sites work well enough for what they purport to do (the search engines obviously have no way of delineating real plagiarism from quotes or blogrolls), so are worth checking out for a quick check on how (or if) your content is being used by someone else on the web. In this case, no news definitely is good news!