Your personal library for the Internet

Save, annotate, review, and share great web content. Receive smart email digests to retain key information.

Save content you want to remember and learn, such as thought-provoking articles, guides, references, and more.


Highlight parts of the article and add notes to summarize key points.


Retaino emails your saved content, highlights, and notes back to you in a digest at the right time to keep your memory fresh.


Share your article highlights and notes with friends, family, and colleagues. Discuss the best of the web.

Save, read, annotate.

Highlight the parts you care about.

Share your highlights w/ friends or colleagues.

Receive timely email digests to review what you learned.