Host Q&A sessions
Engage your audience with polls and quizzes
Gain insights with analytics

TimelineJS is an open-source tool that enables anyone to build visually rich, interactive timelines. Beginners can create a timeline using nothing more than a Google spreadsheet

Плъгин на инструмента за анотиране на текстове в сътрудничество Hypothesis за Chromе и за всеки друг браузър [Bookmarklet]

Diffchecker is a diff tool to compare text differences between two text files.

Use your own document to search for articles and books

Плъгин за реверсивно търсене по изображение за Chromе и за Firefox

Access research papers in one click. Save time accessing full-text PDFs with the free Kopernio browser plugin.