To make it easier for you to handle a large number of sites you can group them together and view their combined statistics. When you start out there is a default group called "All websites" that shows data for all your sites, but you can create as many groups as you need and a site may belong to many groups.
The point of creating groups is that you can treat them a bit like investment portfolios. Group them by subject, target audience, language or type for example. Compare groups to find successful strategies, sites that needs more work and what you should prioritize.
We start with data from Google Analytics and automatically add information from dozens of other sources. A few of the things you will find:
Most of this is also available for your groups of sites, as totals or averages.
Follow how people interact with your sites. The dashboard shows every mention of your site on over 400 social networks like Google+, Quora, Delicious or Disqus and ordinary blogs.
See what page was shared, who it was that shared and go directly to the relevant pages.
We take your data from Google Analytics and present it in a way that focuses on long term performance and comparison between sites. See monthly figures and the linear regression trend for two years back with each month compared to the same month one year ago.
We try to adapt the workflow so you quickly can get an overview over hundreds of sites, but go directly to the sources for in depth information when you need it.
We use 256-bit AES encryption for all communication and use Google's official permission system to connect your account.
To protect your data we remove all traces of a website if you deactivate it or close your account.