I have generally found Problogger* to be a good source of blogging information. Like many busy people I more often read about improving my blog, than actually doing anything about it. My personal blog is in a pretty dire state of neglect. With that in mind I have signed up for 31 Days to Build a Better Blog at Problogger in April.
If anyone would like to join me, please do. There is no cost and no required participation level. You will get one email a day in April with suggestions for making you blog more effective. If there is enough interest (say 10 or more people reply here saying they have signed up) I will comment on the tips with an attempt to spin them more for writing blogs--and perhaps try to replace tips not to suitable for writers with an alternative suggestion.
With that in mind if any of you guys is a master blogger or involved in blogging services for writers, I would be extra interested in guest posts about blogging in April--either you own ideas or responses to the Problogger material.
* Please note that I have no affliliation with Problogger and have not been in contact with them.