My announcement of the Shapely 1.2.4 release was the last such regular release announcement on this blog. Every Shapely, Rtree, spatialindex, Geojson, and OWSLib release will now be announced at http://gispython.org/ [feed] in collaboration with other developers. I'll continue to write about especially notable ones here.
The same goes for my work on Pleiades: my news items will appear along with those of other users and administrators at http://pleiades.stoa.org/news/aggregator [feed]. Some portions or summaries of them will be featured here from time to time.