Kathie just gave some good advice.
I'd post on blogengage.com , postonfire.com and bloggingzoom.com
Furthermore if you write something compelling and interesting sometimes you can post in forums for discussion. Beware though it may look spammy and cause others to think negatively of you and your ventures so do it sparingly. All spam gets deleted by the mods anyways.
Welcome and best of luck blogging,