TREENET (Tree and Roadway Experimental and Educational Network) is the National Research and Education
organisation for urban trees. This organisation maintains a freely accessible website that provides up to date information on all aspects of urban trees, related technologies, products and services.
The website hosts free papers from the organisation's Annual National Symposiums since 2001 and runs a free newsletter service.
The website also provides opportunities to participate in and receive information arising from practical research. For example, the website is running a trial that accepts data from members on the relationship between "tree performance" and site condition.
Institutional (paid) membership packages also exist.