FortesReport is a report generator developed initially for Delphi by Fortes Informática, a Brazilian software company. It is pretty popular between Brazilian developers given the unique features it offers. The initial port to Lazarus/LCL was done by Isaac Trindade and the work that was completed by Luiz Américo.
A simple site with few tutorials and links to documentation to help the lack of documentation. Any contributions are welcome. In fact the initial tutorials were provided by a FortesReport user, Stephen Frye.