I would like to announce another new addition to the Mashups module, Meta Blog Service. Similar to functionality of FlickrService, this allows you to extract blog posts via Technorati for a specified tag. Thus you could create a meta blog page which includes global posts about a certain topic (examples: oscon2007 or harry potter).
You could start playing with it, the SVN and daily builds contains the updated code. You could follow the same steps as in FlickrGallery to setup. I will update the documentation shortly.
I would love to hear your feedback on this :)
(Seems Siggy shown off this in BOF session at OSCON 2007, even before this post)