There are some tips to optimize your free blog hosted at Blogspot.com, you know as I know that a blog by Blogger.com is a very Good content generator that does very well with search engines especially with Google, Why Google? Because Blogspot.com is a daughter service provided by Google company. Here you go to SEO your Blogspot blog.
1. The title of your blog: You must make it only one word, yes this will help all your posts to avoid any conflicting between the post title and the main blog title. So, only one or approximately two words on the title.
2. External links: When you submit a new post, don't add an external link in the first paragraph, you can add that link after the third paragraph.
3. Write daily: Search engines like updatable blogs with daily fresh content, you can write a post per day for that issue.
4. Get links to your blog: This is the most important strategy for your blog, you should get high quality links to your blog from good websites. You can do it by submitting articles to EzineArticles and buzzle "My favorites".
5. Ping options: This service alert the internet users when you add more posts to your blog, just search for Blog Binging" in the Google search engines.
6. Feed Burner: You should also register with Feedburner.com to add a subscription function for your visitors to keep them in touch with your knowledge.
7. Blog archive: Don't use monthly or weekly archive, just use the drop-down archive to avoid indexing of any duplicated content.