It's amazing to keep discovering new services, mainly, by start-up companies, which never cease to surprise with innovation. Unfortunately, general paranoia of many is still in the way of these companies to hit mainstream. It isn't always bad though, as it buys these companies some time to develop as well as pushes others to innovate addressing privacy concerns.
One truly cool service that I use is wakoopa.com. Wakoopa folks say the following about themselves: "Wakoopa is a social network that helps people discover the best software, games and web apps on the market". But let me tell you, I found other uses of it, which couldn't be overestimated.
For example, using wakoopa, I found that I use facebook too much. I decided it is unacceptable to spend so much time on facebook, so I fixed that problem. I found that I was doing other things that are time wasters. Wakoopa helps you sum up what you do and how much time you spend doing that in a sort of quick at-glance mode:
Looking at the picture above, I can quickly conclude that I started work around 10:00, took lunch break around 13:00, finished work around 19:20 and went to gym, got back around 21:00 and watched a movie, did some reading and went to bed at 1 o'clock; see image below for conclusion of my night and what I did all night long:
Yes, I slept until 10:00. 