Source:www.liveearth.org

The summer concert season is gearing up, and on July 7 there will be "Live Earth" benefit concerts in 9 countries.

Tickets are already sold out for the London concert but you can enter the contest for a free pair of tickets to this unique event.

Rather than go into a long explanation about these concerts I'll just point you to the organization's interesting, interactive website where you can learn all about it and download some cool wallpaper and other goodies.

Here's the link for entry into the "Live Earth" ticket giveaway contest.