"This is a visual history of "search" and search engines; hopefully it's both a trip down memory lane and a useful resource for anyone looking to learn a bit more about the history of Internet search engines. If you like the graphic or find it useful you're welcome to embed the image on your own site, link to it, or give it a Digg/Stumble/Etc. "
"As people share more information about themselves online, the internet, in effect, has created a public transcript of consciousness -- storing our thoughts, locations, social lives and memories in data warehouses all over the world. This has enabled technological advances and shaped our social interactions. It's also really freaked some people out. "
Mountain Lion actually seems to be a bit less memory intensive than Lion. Whether that's by design, or just a function of the general disarray Lion was in for its launch, you shouldn't worry about RAM issues.
"Apple's OS X Mountain Lion is out, and it's 20 bucks. That's cheap enough that the price alone probably isn't a barrier to upgrade-it's more about your individual needs. Here's a quick guide to see, at a glance, if you should go with Mountain Lion, or maybe sit this one out."