7, Submit to various online digg sites
At first, after I finished writing a new article, I would submit it to some large digg sites or social bookmarking sites. Later, I found that Google often recognized these sites as the original source of the article and would not index my URL. So now I changed to submitting them one day later. Moreover, submitting to digg sites has one big advantage: it can get indexed quickly and also gain some external links. (At first, I submitted to digg.com, PR=8, fast indexing, high ranking, but the speed was too slow. Now I use Diglog and Donews, which work very well. I recommend you to try them.)