This blog uses the free WordPress platform and a free theme.
The photograph galleries are on Google’s Picasaweb and embedded in the blog. But I am moving them to Flikr as Google+’s photos, which is replacing Picasaweb, I think is more suitable for snapshots and it does not support direct uploading from Lightroom.
There is Zap implemented using a free Zapier account to link an RSS feed from one of my Springpad notebooks so that each time I add a “spring” to this notebook a post is automatically generated in the blog. (I am just playing with this to test whether I find it useful or not.)