Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Burlingame (66% of total searches to Silicon Valley). The next most popular destinations are Palo Alto (12%) and Sunnyvale (12%). Searches for hotels in Mountain View (10%) are also popular.
KAYAK users have found double rooms in Silicon Valley for as cheap as S$ 71 (San Jose) in the last 3 days. The average price is S$ 314.