ABAP Hints and Tips - For ABAP/4 programmers to find hints and tips on programming with SAP's ABAP, useful function modules, and source code. SAP Development - Provides ABAP source code and information on SAP's technologies. ABAPBlog.com - Tips and tricks for the ABAP language. Features a tag cloud, sample code, and an RSS feed. CT-Software - Contains tutorial ABAP programs that are commented. Samples are in English and the rest of the site is in German. SE80 - Contains details about standard SAP reports, function modules, tables, and transaction codes. ABAP Gallery - Provides ABAP tutorials and sample code. FreeSaptutorials.com - Provides ABAP tips, explanations, and overviews. SAP Yard - A blog of tips and solutions for ABAP developers.