There is a post on Garmhos that refers to the lackadaisical trend in writing in e-mail and blogs. I was caught in one myself grammatically in a comment to Jerz’s Literacy Log and am made more aware now of the use of particularly a dictionary while firing off our thoughts.
Spinning has a million (not quite) links to grammar as well as spelling aids, and when easily accessible, I try to use those as well as the books that line my computer shelves.