There is a possibility that Google might start indexing sites in real time. What this means to you, if Google really implements real-time indexing? In normal scenario, a small website might be getting indexed may be couple of times in a month. However, on this small site, if you are submitting several blog posts in a day, every time you submit a blog post, it is getting indexed instantly and this can do wonders to your page ranking.
Drawback of this scenario is that, like any other site managers, spammers can start taking advantage of the new indexing technique. So, Google has to strike a balance and handle these differently. For more on this topic, visit