I come from USA From the official BitWeaver website
bitweaver is an application framework for content management. It is a fully functional web application and CMS, and is used to power every page on this site. It is truly open source, community driven, object oriented, and written in PHP. We use Smarty Templates and ADOdb to support many databases including Postgres, Firebird, Oracle, and MySQL. 
Bitweaver 2 is well structured and powerful!
All modules (forum, wiki, blog and more) installs automatic if U like. No mumbo jumbo with mis-matched plugins. Several changeable themes. More then 20 switchable Gala standard column formats in just 1 click. All modules free open source in compliance w. std CSS and XHTML. Ajax inside. Installs in plain english on most (all?) php-servers. Absolutely a top choice for extended blogs and small to big portals w. community approach. Downside: Not very fast. Full installation ~15MB. I'm just an impressed noob (no profit).
Bitweaver is an open source content management system. Its speed and power are ideal for large-scale community websites and corporate applications, but it is simple enough for non-technical small site users to set up and administrate. It comes fully featured on install but is easy to extend.
Out of the box Bitweaver comes with a full set of features you want in a CMS, such as: Articles, Wiki Pages, Blogs, Categories, Image Galleries, Calendar, Message Boards, Email Marketing Newsletter, User Management, Choice of Database, Languages, Theming, Comments and so on.
Bitweaver Features