I have actually posted dozens more entries to this blog than I have allowed to be published, simply because they just didn't come out right. On most of these, the links were great, but I just didn't feel I did them justice.
Dear Owen is a great example of presenting a list of cool links (which is all I try to do) with some context.
Uppity Negro also does this on a daily basis. I am neither uppity nor negro, yet I enjoy the site because it has a defined point of view and a great sense of humor.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.