@Diana
I am puzzled because the blog linked to your username contains zero content. Is it possible that you have a wordpress.ORG install and an account at wordpress.COM only for the purposes of getting API keys for your Akismet and/or wordpress stats plugin?
See here > WordPress.com vs. WordPress.org
WordPress.com is a hosted blog service. You do not have to download software, pay for hosting or manage a web server. WordPress.com does not permit uploading themes or plugins. WordPress.org is free software. You can install themes and plugins, run ads, and edit the database. http://support.wordpress.com/com-vs-org/
If you are referring to a wordpress.com blog then please note that content is king and without it there's nothing to be placed on the wordpress.com front back page or any page ... lol :)
If you are interested in effective blog promotion these may be helpful:
WordPress.com in house blog promotion
Mastering Shameles Blog Promotion