Link building through paid text ads or reciprocal link exchanges require effort but are they worth it? Matt Cutts has an answer.
The best way to get Techmeme love your blog is through original content, descriptive titles and link love - i.e., you should send some of your traffic to Techmeme and they he may consider including your site among other Techmeme elites.
If you are in an industry that has a successful professional association, working with that association is a fantastic way to get high-authority links.
A popular belief among the SEO community is that links from .edu or US gov domains carry lot of weight in the eyes of search engines and hence, if any of these trusted sites link to your own site, your natural rankings in Google will get a boost.