Kailash Nadh, who created Pingoat, has announced a splog blacklist service SplogSpot. This exposes Pingoat’s blacklist database via an API.
It also features a spam search engine. Type in your keywords and it will return a list of splogs. (All splogs, no blogs!)
There is also a splog reporting tool, very similar to SplogReporter. Should SplogSpot and SplogReporter get together and have one unified interface?
These types of developments are encouraging.