Open Source super-linear growth # 2

Currently I am investigating the trend and patterns in the overall open source software growth. We are using the source lines of code as our metric to measure the total open source growth across thousands of open source projects. Personally I think that open source is not just growing super linearly but exponentially. There are many reasons I think that it is increasing exponentially (current research) but here I will just like to unveil the open source penetration in the web server market. Apache which is an open source web server outperforms the proprietary Microsoft web server IIS by a large margin. According to the Netcraft survey (April 2007) of 1.2 billion websites, Apache had a share of 58.8 % while Microsoft had 31% share. Also, looking at the usage trends the Apache web server seems to have much more healthier future than Microsoft IIS web server. Considering the fact that web is increasing at a tremendous rate, the IIS usage seems to be constant or mostly declining. The sudden increase in IIS usage in April 2006 can be attributed GoDaddy’s decision to shift to Microsoft technologies away from open source. Except this ‘artificial’ and ‘paid’ (?) sudden spike the IIS is certainly on a decline.