Words - Software for improving your english vocabulary.

Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.

Medium - Welcome to Medium, a place to read, write, and interact with the stories that matter most to you.

Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

Dataset Search - Making it easier to discover datasets. Made by Google.

Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.