Not too sure if many of you are using slideshare yet but would just like to toss a heads up that Slideshare is basically something like the new Hub Pages.
What we like to do is copy an optimized articles into several sections to make a simple 4-5 slide with about 300-400 words of optimized unique content (with some images).
Upload it and include a description of about another 100 words of revelant content. The first page of the slide is usually the call to action since it's displayed most prominently with the following pages with quality content.
It's very effective if you want to get ranked and siphoning some traffic from more competitive keywords faster. to SEO these slides you can mix most things and it's also less delicate than when trying to promote a fresh site.
Within a couple days the slides are usually on the first page.