10 great Google hacks

Here's a smorgasbord of my favourite Google hacks to celebrate my return from holibags. From how to make a Google maps mash-up, to finding the 'hidden' flight simulator in Google Earth, some of these aren't really hacks, just plugs for some of the more obscure stuff in the burgeoning Google product set. Either way, you should find something of use in here, and you can always add your own favourites in the comments: 1. How to make a Google Maps mashup Ever wondered how to make a Google Maps mash up? How to take data from, say, Wikipedia and display it on Google maps? Ever paid anyone a mass...

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