Comparing Web 2.0 tools on different dimensions

Suppose i want to make a table that compares different web 2.0 tools with respect to a number of features or dimensions. Can I do that right here in my blog? No, formatting is too primitive. Of course, it does have a limited ability to insert html code. So perhaps I could use some htlml editor to generate the table, then copy the code into the blog post. I tried that, but the blog machine seems to understand only a subset of html. After much effort, I was able to generate the below, which is not great:

Dimension	Google Group	Blogger	PbWiki	Frontpage Website	Google Docs
MS Word-level formatting	no	no	no	yes	yes
Lets readers comment or edit	yes	yes	yes	not easy	yes
Lets users edit posts	yes	no		no
Has community boundary	yes	no	for editing	no	yes
Collects project-related emails together in one place	yes	no
Has manager, co-owner, writer, editor, collaborator level	yes	yes	yes	not really	yes
Has (bounded) community, reader, viewer level	yes	up to 100 readers	yes	no	no
Public can request access to community	yes	no	yes	n/a	n/a
Has universe level separate from community	no	yes	yes	yes	sort of, through publishing
Can upload files	yes	no	yes	yes	yes