The Open University provide an OU Student Blog platform, which you are required to use for some modules to build up reflective practice, they also provide a portfolio called MyStuff in which to dump stuff.
As portfolios either system can be used to aggregate content that can be shared, offered with restricted access or kept private.
I have been on the Masters in Open & Distance Education for two years, we have to give blogs, potfolios, wikis and other tools a go.
My conclusion, shared amongst fellow students, is that the 'modern' blog platform, such as Wordpress offers all of this, as in a wonderfully simple, bulletin board kind of way the OU's own blog offering.
Tags: maode, blog, blogging, ou, wiki, portfolio, mmb, mao