When Hotmail, a business backed by Draper Fisher Jurvetson, was sold to Microsoft in early 1998, its $400m price tag caused something of a stir. Today Juniper Networks, a four-year-old start-up funded by Kleiner Perkins Caufield & Byers, trades on Nasdaq at a capitalisation of $69bn. The last two or three years have been an extraordinary period for venture capitalists...more