Google Blog Search works in real time by indexing every blog’s fresh content in real time, which means the moment you publish a post in your blog its indexed by Google bots as if the bots are always staying on your blogs. You can check out these stats by using the following search keyword.
To know more about Google Blog search click here
If the bots have not yet found your blog, dont worry and dont panic. You just need to get your blog pinged manually once and there after the bots take care of your blog by getting your blog indexed and rank in the top of the search results for the respective terms.
Following is a screenshot which i just took in order to show how quick the posts get indexed with the published time displayed below the post.
The content is not only indexed in real time but also your blog posts start ranking in Normal Google Search.