Rent a car at the San Francisco international airport

Formulating a group plan for San Francisco can be exhilarating. While making the plan you should start from your budget. After finalising that you can go on and plan the rest like air tickets booking, hotels, local sight seeing, fooding etc.

When you are travelling as a group you will receive good group discount and thus will save a lot of money.

You should also plan together the places that you want to visit. A thorough online search may help you in this. Another important thing is to keep your return dates flexible. Also maintain some extra money for emergency.

For more on group plan to San Francisco you may go through the following links

http://www.triporama.com/

http://www.virtualtourist.com/travel/North_America/United_States_of_America/California/San_Francisco-755471/TravelGuide-San_Francisco.html

The Gold Rush era in San Francisco lasted almost two decades, between the years 1846 and 1864. Gold was first discovered 120 miles away at Sutter's Mill. Sam Brannan, a tabloid publisher at the time printed as fact his suspicions about the gold present in Sutter's Mill, hoping to draw attention from the East.

His newspaper folded when people emptied San Francisco and rushed to Sutter's Mill. But when other newspapers started printing stories about gold in the mountains surrounding San Francisco, the city soon filled with migrants from as far as Australia and China, as well as Europe.

http://www.lonelyplanet.com/usa/san-francisco/history

http://www.sfmuseum.org/hist2/gold.html