I wrote an entry about
ways to generate traffic to a website a week ago. You can read it at my site if you like. This is only my 2nd week blogging, though it is not the first time I have a blog. Traffic generation takes time, consistent effort, and persistence. These 3 elements go hand-in-hand.
Because eventually you need to put away time to generate quality content, and quality content depends on your daily consistent effort, and consistent effort requires persistence.
Social bookmarks works well in getting yourself noticed, but to get to the front page of digg or delicious for that matter, requires you to have substantial traffic. I visited political dishonesty, which I believe is the site you were referring to. Perhaps you might want to cut down on the number of social bookmarks and choose only a few popular ones like Digg, Delicious, StumbleUpon etc. And instead of using Apostolos Dountsis' social bookmarks plugin, you can try
sociable. It doesn't clutter and looks more organised.
I'm not yet statisifed with my current level of traffic because of the time constraint I have in marketing it effectively but a check at the stats shows that it is increasing well. And my RSS subscribers have grown from 0 to 12 in 2 short weeks and that is considered quite a relief for me.