HyperCard, the graphical hyperlinked Mac app that influenced the invention of the Web, was invented by Apple engineer Bill Atkinson after an acid trip 30 years ago this weekend. Now the Internet Archive has brought it back with a collection of over 3000 hypercard "stacks" that you can explore right in your browser. Each stack opens inside the Archive's emulator of an early Macintosh computer.

If you want to reminisce about the days when all your tech info came from monthly magazines, you have two options. One, you can track down a dusty collection of, say, CU Amiga mags, perhaps in your own (or a friend's) garage. Or two, just hit up the Internet Archive, which has a healthy collection of digitised periodicals, with a focus on computer and IT-related topics.

Chrome: The Wayback Machine from the Internet Archive has long been a resource to view older versions of websites, whether you want to dive into ancient GeoCities or just want to see minor revisions made recently. Now there's a Chrome extension to make it even easier.