UIMA is available from the Apache Software Foundation's incubator website, http://incubator.apache.org/uima.
Both ready-to-use binary distributions, as well as all of the source code for UIMA are available.
Apache UIMA maintains two publicly archived mailing lists, one for the ongoing development of UIMA, and the other for users of the framework. There is also available a wiki for Apache UIMA.
The UIMA framework has been embedded in a variety of supported IBM products enabling them to leverage advanced analytics.
In particular the UIMA APIs are available for creating customized solutions in IBM OmniFind Enterprise Edition.