Searching the Internet can cost a lot of time and still give only a few results. It is very difficult to find out whether a student has really tried or actually played a game. If you keep an internetlog, you get a better impression of what the student has done. This can be informative for the students as well. In an internetlog, the student writes down which sites he/she visited and how he/she found these sites. The student has to write down the first four words of the site as well.
Of course you can extend this by adding questions like who made the site and which information did you find there? You can download an example of an internet log.