The problem for Norwegian startup founders is that they have to compete with the oil industry as well as said oil service industry for the best people. Since both of these are insanely lucrative, it is hard for web and other IT-related startup to afford the salaries the oil related companies can pay. In Oslo you have less of that kind of industry, but on the other hand, bloated administrations of the government and said oil companies that makes it similary lucrative to get into IT consulting rather than doing startups.
The result is that there is little incentive for an engineer to start a web and other IT-related startups in Norway.