I've mostly found blogging saves me time by allowing me to link myself. Plus longform writing allows one to transcend mere comment-box arrogance and ascend to the heady heights of bounteous pomposity.
I sometimes use my blog posts as an alternative to bookmarking. Many of my blog posts are like bookmarks with annotations, and it also makes it much easier to refer other people to, when I need to cite sources, break down a large article or complex subject, etc.
