For me personally: I think the future of the web will be more geared towards offline, only managed online, so these are some that pop up in my head right now. First the ingredients:
There is already talks about "Facebook adaption rate in UK dropping off" and similar for most online social networking sites. Facebook suicides are common, I have several friends who have killed their Facebook profiles. In short, after the first "love" has died out with social networking people start to think sites like Facebook actually drain more energy than it gives. Besides, deleting apps you never wanted sent by "friends" that you have lost touch with (probably for a reason), isn't all that it's cracked up to be.
In the backlash of Facebook, enter services like Flickr, Upcoming, Dopplr and Twitter. They ask nothing of you. They…
I have spoken about the details as a topic and their importance within web design/development elsewhere but just to continue on the same topic I read this article at A List Apart today which delves further into the importance of details when presenting creative concepts to clients, and getting it 100% right. Now, all of the tips given in that article are sound and reasonable...