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Evernote is a cross-platform note taking and idea capture utility that automatically syncs to the company's cloud service. It allows you to easily save websites, photos, and text for later usage or collaboration purposes.
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SpecsUpdate
Pros
Pro Native and offline-capable apps on pretty much every platform
Evernote has apps for Windows 7 and 8, Windows 10, Mac, Android, iOS (both iPhone and iPad), Blackberry, and Windows Phone. It also has a fully functional web app and chrome plug-in. No matter what device or platform you're on, you will pretty much always be able to access Evernote.
Pro Powerful features for organising your notes
Evernote is designed to make it easy to keep your notes well organized, which aids in quickly finding/browsing old information. You can put notes into a single notebook and use search to access old notes, or if you're so inclined, organize notes extensively with hierarchical notebooks and tags.
Pro Consolidates all your information
Evernote is designed to store a lot of different types of information from a lot of different sources in one place. Using the Web Clipper, native integrations, or a service such as IFTTT (If This Then That) you can use Evernote to store all your ideas, notes (both handwritten and typed), tasks, reading lists, receipts, and more.
Cons
Con Bloated and complex
Evernote is too big, has too many features. Note taking apps need absolutely clean interface to allow unobtrusive note taking and not a struggle to search for which buttons to click. It focuses on the search feature so much that it doesn't encourage or make it immediately easy to organize your notes and thoughts. It's essentially a sophisticated notes dump with good search.