We would like to take a moment to thank this week's advertisers on SFist.

• , by using your AMEX card and help San Francisco get the largest share of a million-dollar tree-planting grant.
  
• Zipcar, cars by the hour or day, just around the corner. Sign up now and get $25 in driving credit!
  
• AMEX Dish, where you can win a $400 gift certificate for a meal at Cyrus.
  
• Walk for Hope, taking strides on October 4th to cure breast cancer.

If you're interested in advertising on SFist or any other site in our network, check out our online mediakit.