I've just started learning sling. The biggest problem to me at this stage is to browse JCR repository. Is there any good tool to view what is inside repo, showing resources and all properties?
I need something like this one: http://blogs.adobe.com/gary/files/2011/05/pic3.jpg
Sling does include a basic explorer that you can access at /.explorer.html
I haven't followed the status of the https://github.com/onflapp/RESTed explorer lately, but that looked quite interesting last time I looked: https://github.com/onflapp/RESTed
There's also http://www.jcrbrowser.org/sling/website/ which I haven't tried in a long time but might be worth looking at.