I just had a nice conversation which included the topic of Ming: a C++ library which can generate SWF movies. It has bindings for many scripting languages like PHP, but can also by access with compiled C code. I've been using it for years and recently I've taken a little break, but I really want to start using it again.
Here is the Docunext wiki page about Ming, and here's an open source project I've been working on for quite some time which uses Ming:
And of course, what's a blog post about Ming without a link to Gazb's Ming tutorials?