For tips on advertising your blog, check out all the tips here
. And add your URL to your profile here so that it displays beneath your name.
As for posting, do whatever feels comfortable to you. Just realize that multiple posts may not necessarily be viewed by your usual reader base. Most bloggers (not all, not by a long shot) only post once per day, creating a routine for themselves and their readers. If you typically post early in the morning, your readers will likely become comfortable with your posting routine and create a routine for themselves to check out your posts.