I don't know why Scoop.it doesn't work for you as you don't specify it at all. I find it superb.
Another solution that is not likely to disappoint you must depend on what you want to do
and this is probably where I lack information the most. What is your desired end result and objective?
Re Pealtrees I have been pointing to them as the future way of "making sense" since last January
and it is indeed a great mind-mapping solution for vast bodies of info
but I remain unenthusiastic about their interface and expect better tools and solutions to surface this year.
In line with my ongoing mission to share with others, I would also appreciate us leveraging for these types
of questions Quora (
www.quora.com), which provides for me a unique space for sharing and learning. I invite you therefore
to consider posting your next questions using that free service and inviting us to reply there, so that our insights do not
remain just a private conversation.
All the best