Google's Slow Search for a Good Share Price
Google Inc is search for price at which it will sell stock to public for first time; company begins taking bids on Internet for 25.7 million of its shares after nearly three months of intense government scrutiny, few modest legal setbacks and rising investor skepticism; is hoping to sell about $3 billion worth of stock using form of Dutch auction; expects to close auction next week; chart; photo of Google's co-founders Sergey Brin and Larry Page (M)