A common task (and a required task to 'un-drupal-afy' your site) is to override the standard output templates within Drupal. However doing so isn't as clear as it should be. Here's how to override a block template.
(UPDATE) I've added some new information regarding the hash value generation. Take a look.
I love open source. I really do. But one of the big complaints people have with it is documentation. Most of the time documents are written in such a way that you have to already know how to use the software to know what the docs are saying. They're more reference manuals than training or support documents. And a lot of the time this can be frustrating. With Services and making XML-RPC calls using the key authentication in Drupal, this was made more apparent than ever.

Director of Operations
We're trying out a new spam filtering system. With it we shouldn't need to manually approve comments on posts anymore. However, the system needs to learn about what is spam and what isn't. So there'll be a few posts here and there of spam that make it through but as long as we can tag them as spam they should disappear soon enough.
If you're curious as to what we're using, check out http://drupal.org/project/spam and the Baysian filtering system.
I had the opportunity to be part of a panel at the Ontario University Computing Conference titled "Exploring the Content Management Ecosystem" with some colleagues of mine. It was a great talk, really good people and great questions.
Big thanks to David Pascoe-Deslauriers (fellow Coldfront kid), Mathieu Boudreau and Bertrand Lefort for their help and opinions on the subject.
You can have a listen to the audio below.
For those who are interested, check out the 2010.oucc.ca website for more presentations and materials.

Director of Operations
It's that time of year again. Where all us Drupalites get together for one big party... I mean one big conference. We'll be there at the Moscone Center in San Francisco and we're looking forward to seeing you all again!
For more information about DrupalCon check out http://drupalconsf2010.org