You can promote your blog anywhere, and use it both for promoting products or write about your thoughts or different topics that you find interesting. But even if you don't write any blog post, it is always a good idea to fill in a few of your interests and let people know what you promote, since every other member can see your page throughout Hungry For Hits. Anyone can search for interests in the search field in the top right corner find your blog on the social network page that way.
Since this page is promoted passively in Hungry For Hits, you will be missing out on potential signups and branding by not having filled in a little about yourself and what you do or promote. You can also fill in your location to show people where you are from.
Related articles:
Creating a blog post
Adding an image to your blog post
Blog activity feed
Network friends and contacts
Blog backgrounds
RSS feed
Promoting your blog