ReadCube – Your Research Literature Simplified
http://www.readcube.com/

Features include: a) Save Time: Create your article library instantly — import your PDFs in a single step. One-click download of related articles; b) Be Organized: All your articles in one place — they’re full-text searchable with your highlights and sticky notes; and c) Discover More: Stay on top of the latest research — relevant articles are automatically recommended every day. Additional features include: 1) Let ReadCube Organize your article collection; 2) Download articles with a single click; 3) Personalize article recommendations; 4) Read and annotate articles; and 5) Cite and create references. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog.