If you're looking to study for Forum, make sure to consult the Sources for FJCL Academic Tests. To practice for your test, check out hundreds of Past FJCL Tests.
For an introductory look at each test, take a look at the Regional Study Guides. At least half of the questions on each Regional Forum test will be drawn from these study guides.
The FJCL offers the following academic tests at State Latin Forum each year:
History of the Empire
History of the Monarchy & Republic
Mottoes, Abbreviations, & Quotations
Reading Comprehension, Poetry
Reading Comprehension, Prose