During the dot-com bubble some of the largest companies on earth were Internet-related stocks. Didn't go so well; consider this graph of technology sector from

During the dot-com bubble some of the largest companies on earth were Internet-related stocks. Didn't go so well; consider this graph of technology sector from 1998 onwards: https://www.google.com/finance/getchart?q=XLK&x=NYSEARCA&p=40Y&i=604800&ei=ok19WMC3LMaJmAH7kb3ICw https://www.google.com/finance/getchart?q=XLK&x=NYSEARCA&p=4... Still hasn't recovered.