  The MAID project is a collection of theoretical models for pseudoscalar meson
photo- and electroproduction from nucleons. It is online available and produces
results in real time calculations. In addition to kinematical variables also
model parameters, especially for baryon resonances, can be online changed and
investigated. Over 20 years MAID has become quite popular and the MAID web
pages have been called more than 7.7 million times.
