As someone who has taken to building my site up and getting it to be looked at as more than just a blog on the web, I know how important it is for me to have content. That is why I put so much emphasis on other things that aren’t blog related. Having more content than just a blog will also help with search engines.
Most of my incoming links aren’t from personal bloggers, but from other sites who use my tutorials and scripts. The more fresh content you have, the more people who link your site, the more people link your site, the higher link popularity you have.
If you aren’t keen on having content, and just want a blog, but still want a good search engine ranking, then you might want to try link building. With link building you go around and comment on as many sites as possible, and get your site linked on as many sites as possible. The more links coming in, the better it is for your website.