KEY BISCAYNE, Fla. - By age 10, Blake Ross was designing Web pages on America Online. By 14, after mastering complex programming languages such as C++, he was fixing bugs in Netscape's Web browser from home, a hobby that landed him a job offer. Related Quotes AAPL DJIA NASDAQ S&P 500 70.49 10392.99 2034.27 1167.87 +0.03 -78.48 -11.61 -7.54 Delayed Data Providers - Disclaimer "What, at the local store or something?" David Ross remembered thinking when his son told him. No, at Netscape Communications Corp. Ross, now 19, a sophomore computer science major at Stanford University, has an even more...