Nice one from Hongkiat! Five free tools to notify you of Web site content changes.

Useful: Noupe has a roundup of 40 GIMP tutorials.

Nielsen has launched Nielsen Twitter TV Ratings. (Press release.)

Loyola University has launched an experts guide. “Developed by Loyola’s Office of Public Affairs and External Relations, the online resource identifies faculty, administrators and staff who offer special knowledge, informed opinions and noteworthy perspectives on current topics. Loyola sources can speak on subjects including national and local politics, crime, health care, the ongoing BP litigation and the crisis in the Middle East, to name a few.”

Audio files of Auschwitz survivors have been put online. “The Fritz Bauer Institute put online hundreds of hours of recordings of German-language testimony about the horrors of Auschwitz, where more than one million people were murdered during World War II, most of them Jews.”

Wolfram|Alpha has expanded its Step-by-Step interface into chemistry.

Here’s your afternoon fun: 1661 pulp novels as free e-books. Good afternoon, Internet…

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