There are more than 5.07 billion active internet users worldwide.
This is just a bit of expansion on the blog post I wrote 2 years ago on how "WordPress Won The CMS Wars". But we'll picking up on the narrow subject of 2 forks of the original b2/Cafelog script.
As you all know WordPress is a direct descendant of the b2/Cafelog script. But many do not know that the other descendant of b2/Cafelog is the b2Evolution. Unfortunately, at the moment it is languishing as its uptake has never measured up to that of WordPress. But it has been a pretty solid script right form its inception.
b2Evolution has the capability of creating multiple blogs from a single codebase something which WordPress never had until WordPress MU was merged into the main codebase. There are many other features that b2Evolution has had: see its features here and its background here.
So why did it fall behind? In my opinion:
NOTE: This is not a swipe at b2Evolution. Every CMS developer team has its goals. Sometimes they succeed spectacularly, many become average while majority become failed, abandoned projects. b2Evolution is still available and has moved towards social blogging over time.
Update 18th, June, 2022
Further development of b2Evolution seems to have stopped as from this post. And judging from its founder it seems to have ran into financial difficulties to sustain it.