More and more content on the internet is 'real time'. Twitter messages, news feeds, pictures, facebook, etc.. Where we used to browse the web for things that have mostly been written in the past, more and more of our internet minutes are spent watching things that 'just happened'.

I see this as a threat to Google, and it wouldn't surprise me if they finally manage to buy Twitter, because Twitter helps them become more 'real time'.

To give an example, I was just trying to update my profile picture on Twitter, and this didn't work. For some reason it refused my pic without an apparent error messsage. Possibly I'm uploading something wrong, so first I googled for 'twitter profile picture' and got this result:

Then, I did the same search on Twitter Search and the result was this:

As you can see, this tells me that in the past 22 minutes, multiple people had this problem. (Ironically you can also see from their avatars that it actually is a problem). The Google results on the other hand, have nothing that is relevant if you take into account the 'now' factor.

This is just an example. Searching for 'current content' is getting more and more relevant. Comments on a live show on tv or an address to the nation by the president; Google is useless in finding these things.

So it is my humble opinion that either a) Google will buy Twitter, Facebook or another 'real time' content site, or b) Google will release an updated Google Search that takes the whole 'now' into account in its search results.