Post your Blogspot Blog's link to all major Social Bookmarking sites. You can also generate the RSS feed for your blog. This will be also helpful.
You ca do the basic on SEO. You can do on-page or off-page. Like what weknowonlinemarketing had said, post your blog or blog posts on major social bookmarking sites like Digg, Diigo, StumbleUpon, Reddit. You can also submit your blog on major blog directories like BlogCatalog, BlogRankings, Blogged. Post comments on other blogs that is related to your blog. These are helpful techniques.
I wouldn't mess with blogspot. The main reason is that you DON'T OWN IT. In the end, they can take your site off and they don't have to explain why. Many sites are very sensitive about this whole internet marketing thing and if they consider your site spam or breaking the rules, you're gone. Buy a .info from Godaddy for like two dollars and you can do anything you want with it. In the end, I think .info's are easier to rank than blogspot anyway. And with a Wordpress site, you can do more, and cooler stuff with it anyway.
Optimize your blog by getting into high PR blog, social bookmarking sites like Digg, stumbleupon, etc as well as to various blog sites.This are some keys for definate push up.
Why do you need to optimize your blogspot blog? The most you can do on blogspot is to place adsense ads on the sidebar or some part of the page. To optimize it, add RSS feeds. But that is the most I think because there is only so much you can do with blogspot.
try to optimize the post.... and highlight the keyword with h1 tag in the post and build some back links to your blog u can generate a decent traffic and later on it will rase......
you can write some articles for your site that works really well. Do off page seo on blog and forum comments make sure they are do follow. Try creating a facebook fan page good way to drive traffic from social network. Directroies. You can hire people to do it if you want or do it yourself.