These are the four apps I use to deal with information and cognitive tasks daily. I use all four almost continuously on my MacBook, iPhone, and iPad. I have been using the four programs with cognitive impairment-dementia for several years.
Among other things, they allow me to write this blog 6 years after initial diagnosis.
Google finds information.
Snagit is the easiest way to clip parts of the information into various formats.
Evernote is a great place to store it.
iMindMap is the best way to organize information into forms that can maximize memory, be manipulated for decision making, and multi-task.
These would work darn well without cognitive impairment or dementia, too.