Looking for someplace fresh on the Internet? Here is Patch's weekly round-up of must-see Web destinations — picked specifically for Fairfax County residents.

• Struggling with the warmer weather? The Fairfax County Heat Advisory has some advice on how to stay cool during this hot summer.
• Follow online store Think Geek, whose offices are based in Fairfax, on Twitter.
• Looking for a good farmers market? Fairfax County's web site, has a nice list of which ones are in the area and when they're open.
• The latest state to be profiled on Aerial America? Virginia!