Hypothes.is
Description: Hypothes.is is a free, open-source web annotation tool that allows users to add annotations to any webpage. Users can highlight text on a page and add comments publicly or privately. It facilitates group discussions and back-and-forth conversations around online content.
Type: software
Pricing: Open Source
Instagram
Description: Instagram is a popular photo and video sharing social media platform owned by Meta. It allows users to post photos and videos, follow other users, like and comment on posts, and share content to other platforms.
Type: software
Pricing: Free