Anecdata.org (often shortened to Anecdata) is a citizen science web portal developed by the Community Environmental Health Lab at the MDI Biological Laboratory in Bar Harbor, Maine.

[4] The Litter-Free Digital Journal is a project from the South Carolina Aquarium hosted on Anecdata.org with a custom app, that encourages participants to track and remove plastics and other litter from both land and water.

[6] The data from this project has inspired participant activism[7] and has been used to influence public policy in South Carolina, including plastic bag bans.

The project aims to support scientists and policymakers in finding solutions to the problems caused by the invasive species, European green crabs.

[9] The project uses a mobile app and participants document the number, shell hardness, sex, and size of crabs seen during one hour.