If you have not taken the following steps, consider implementing right now:
1. Submit your blogspot sites to Google, Bing webmaster tools.
2. Cross Link your blogspot sites.
3. Google + Badge and sharing the sites through Social Networks will have multiplier effect.
4. Co promote and Link building be considered on reciprocal basis.
5. Reply to commentator comments.
6. Join popular sites like WebQuestionAnswers, HubPages and IndiaStudyChannel and follow others to be followed.
7. Unique Content is the key to success.
8. Old articles be updated so that the same do not become obsolete.
9. Use good web directories to list your sites and use social networking sites like Google+, Facebook, Twitter, Delicious etc to get found easily.