AUR is dead for now, profit switching multipools like Wafflepool raped and killed it yesterday. The difficulty is so high that it takes ages for new blocks to be found by miners. Because of this and dropping prices dedicated miners stopped mining and moved on. Don't forget: new blocks contain the transactions of the network and so your coin transfers. Each block is also a 'confirmation' for past transactions.

Last six blocks (they should come each 10 minutes)

4121   2014-03-05 09:09:50   172   8745.97877292   7109.79   10603001   31.4683   39.4882   19.825%
4120   2014-03-05 04:11:26   120   11079.38249692   7109.79   10602976   31.271   39.281   19.9051%
4119   2014-03-05 02:30:03   140   5097.71346093   10664.685   10602951   31.2062   39.2106   19.9269%
4118   2014-03-05 00:12:37   91   1719.5911466   10664.685   10602926   31.1112   39.1152   19.9747%
4117   2014-03-04 23:39:27   248   11456.37999395   10664.685   10602901   31.0885   39.0921   19.986%
4116   2014-03-04 20:06:58   129   4571.51438461   10664.685   10602876   30.9476   38.9446   20.0451%