You ask for google. I would say, concentrate only on dofollow backlinks. Start commenting on high PR dofollow blogs. Maybe, 5 - 10 comments a day is a good start.
I just started my blog about 3 weeks ago, and I checked on Yahoo! Site Explorer which says I have 228 backlinks. The best way to accomplish this would be to find blogs in your niche, find posts you genuinely find interesting, and then leave a comment about it with your URL linking back to your site.
If your using competitive keywords for your blog then you have to get more than 10 if you want to get to your desired rankings on SERP..