CML (Chemical Markup language) is the most mature and best developed and documented Chemical application of XML, and they have now made available an extensive range of resources and software tools to illustrate its form and its application,together with a list of some "frequently asked questions" about CML and XML.

The materials include: 1. A (2 Mbyte) download for the JUMBO3-J browser written by Peter Murray-Rust,which is a standalone molecular browser written in Java and capable of reading not only CML files, but a wide range of legacy molecular formats. This browser includes the excellent JMVS 3D viewer written by Allistair Crossley and incorporated into JUMBO3 as an example of how such software can be easily extended via collaboration. The download includes source code for the core components of CML for the developers amongst you

2. An on-line demo and (400K) download for a lightweight version of JUMBO3 written in JavaScript by Peter and Michael Wright, and capable of viewing XML-CML files by converting them on the fly to SVG, which is then displayed using Adobe's SVG viewer. This is an excellent illustration of how XML data can be transformed into other XML forms (SVG is also XML), in this case for display purposes

3. An on-line demo and download for a CML aware version of the Peter Ertl's Java Molecular Editor (JME).. The base JME editor is extended using an interface (JML) to input and output CML as well as the usual JME supported formats. It comes as an application (which allows CML files to be read and written to local hard disk) and an applet (which allows CML files to be copied to the clipboard for pasting into other applications). You will need Java 1.2 to run this on your system.

4. They have compiled an FAQ which attempts to address many of the questions and issues often raised in connection with XML and CML.