Lately i have seen lots of new social bookmarking sites. The reason is that there are several free scripts that allow us, fast, free and easily to create a social bookmarking driven site.
One of those scripts, is Pligg. It is a free CMS (content management system), it is open source and powered by a php/mysql.
This script, besides allowing the webmaster to manage a digg like site, joins the power of CMS.
The script is at version 9.9 beta, meaning that the community is active and constantly releasing new features, mods, templates.
Unfortunately, there are many social bookmark sites around these days. Competition is some what high, but there is still space available… And some money to be made 
