This week I launched a Blosxom based site wide web log on the company intranet. Not a lot of people have noticed yet, but it does work and arrived pretty much on time, and way under budget....
We also "soft-launched" a re-skinned version of our web site. The content is pretty much identical to before, just some typos fixed, but it looks very different. I can't say I'm totally happy with it, it's got lots of Dreamweaver crap in it, it's got evil hacks to make CSS work in IE, evil ECMA-262/Javascript, and very evil iframes. I know it's not the most usable or accessible, and that annoys me, but there isn't much I can do about it, especially as it needs a total overhaul this year anyway.
The good thing about these two projects is the use of free/open/cool stuff. Both run on Linux systems, use Apache/Perl heavily, and lots of other really useful stuff: Bash; rsync; wget; libxml2/libxslt; ssh; et al. Working with Windows server instead of Linux ones would have been more expensive, and quite horrible.