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eMargin
What it is
eMargin is a free web-based collaborative annotation tool for highlighting, colour-coding, noting, and tagging words or passages. Users can share annotations with groups to discuss texts and combine interpretations, while synchronous work shows participants’ updates in real time. Annotation search can filter by highlighted text, comment text, colour, tags, creator, group, or date. Group membership controls which highlights are visible. The guide also describes links from text to the Oxford English Dictionary, Wikipedia, and WebCorp, plus printable text versions and annotation history. Birmingham City University describes streamlined Virtual Learning Environment integration. A project poster lists IMS LTI single sign-on and class-list importing from VLEs, naming Moodle, Blackboard Learn, and WebCT as compatible platforms. The service is intended for teachers and students in higher education, further education, secondary schools, and language schools worldwide. Its accessibility statement reports partial WCAG 2.1 AA compliance, with keyboard navigation and low-contrast annotation colours among known issues. Alternative-format requests can be sent to [email protected].
For and against
For
- Free web-based annotation
- Real-time collaborative updates
- Searches annotations across seven criteria
- Supports groups and visibility controls
- Offers LTI and VLE integration
Against
- Accessibility is only partially WCAG 2.1 AA compliant
- Keyboard navigation has known issues
- Low-contrast annotation colours are a known issue
- Interactive-system changes are limited in scope
The verdict
eMargin combines detailed annotation search with group-based, real-time collaboration. Review its accessibility limitations and webpage-focused document support before adopting it.
Who it suits
eMargin suits educators and students who need shared annotation of webpages. It is useful for group discussion, teaching, and comparative reading.
Plans and prices
Free
The site says it is free to use; no further limits are stated.
Read 9 Oct 2026 · emargin.bcu.ac.uk
On the record
- Accessibility
- The accessibility statement says the site is partially compliant with WCAG 2.1 AA and lists keyboard navigation and low-contrast annotation colours among known issues.emargin.bcu.ac.uk · read 9 Oct 2026
- Accessibility limitation
- The accessibility statement says the interactive annotation system dates to a 2010–2012 funded research project and that changes to it will be limited in scope.emargin.bcu.ac.uk · read 9 Oct 2026
- Accessibility support
- The accessibility statement asks users who need alternative formats to contact [email protected] and says requests will be acknowledged within three working days.emargin.bcu.ac.uk · read 9 Oct 2026
- Annotation search
- Annotations can be searched by highlighted text, comment text, colour, tags, creator, group and date.emargin.bcu.ac.uk · read 9 Oct 2026
- Collaboration
- Users can share annotations with groups to generate discussions and combine interpretations.bcu.ac.uk · read 9 Oct 2026
- Groups
- Users can create groups, and the active group setting controls which highlights are visible based on group membership.emargin.bcu.ac.uk · read 9 Oct 2026
- Intended users
- BCU describes eMargin’s use by teachers and students in higher education, further education, secondary schools and language schools worldwide.bcu.ac.uk · read 9 Oct 2026
- Live updates
- The guide says users can work on a text synchronously and see one another’s updates in real time.emargin.bcu.ac.uk · read 9 Oct 2026
- LTI integration
- A project poster describes IMS LTI integration with single sign-in and importing class lists from VLEs, and names Moodle, Blackboard Learn and WebCT as compatible platforms.emargin.bcu.ac.uk · read 9 Oct 2026
- Purpose
- eMargin is an online collaborative annotation tool for highlighting, colour-coding, writing notes and tagging words or passages of text.bcu.ac.uk · read 9 Oct 2026
- Text tools
- The guide describes text lookup links to external sites including the Oxford English Dictionary, Wikipedia and WebCorp, plus printable text versions and annotation history.emargin.bcu.ac.uk · read 9 Oct 2026
- VLE integration
- BCU says eMargin provides solutions for streamlined Virtual Learning Environment integration.bcu.ac.uk · read 9 Oct 2026
