The engine gives users the chance to choose which pages they want in their index, what the search results page will look like, and how exactly the content should be prioritised. Users will also be able to allow others to contribute to their own index page, if they wish.
With the custom engine, people can decide whether or not they'd like to search the whole wibbly wobbly web or they can limit their search to a select few pages.
Marissa Mayer, Vice President of Search Products and User Experience - that's a catchy VPSPUE for short - said in a statement that: "Everyone - businesses, organisations, moms, dads, teenagers and teachers can harness the power of Google technology to create a personalised search experience." We tried to harness the power but quickly got bored.
It's all fairly simple to use, it would seem. Just head on over here and follow the instructions. ยต