Websites for Grammar, Forms, & Translation
http://www.latinteach.com/latingames.html has Quia games for every text (LatForAm, Ecce, Jenney, Cambridge, etc)
http://www.quia.com/shared/latin/ the first 6 or so games are great drills on grammar. Scroll down to #16 to find vocabulary games on every unit from the Latin for Americans text.
http://www.quia.com/pages/pvilatin1.html *for the 2003 edition* - more Quia vocabulary games on every Lesson in the Latin for Americans text.
http://www.quia.com/jfc/355750.html a Quia game on those annoying little Latin words
http://www.nd.edu/~archives/latgramm.htm an online Latin-English and English-Latin dictionary. It also contains an online grammar aid.
Demodocus.com This site contains self-tests on all aspects of grammar, vocabulary, and classical civilization. I especially recommend the variety of grammar and vocabulary drills which are offered. With this site, you can easily review basic Latin vocabulary and elementary noun/verb forms.
http://lonestar.texas.net/~robison/ludi.htm fun games/quizzes/challenges on different classical subjects
http://artemis.austincollege.edu/acad/cml/rcape/latin/ Although this site is specifically for use with the 'Oxford Latin Course' text, there are some great drills on basic forms and grammar. Just go to the site and click on any chapter number (start with the first few chapters, then work your way up). Each chapter contains a drill on the grammar introduced in 'Oxford Latin' text. Here are some examples of useful drills: Ch.11-13, forms of the 1st, 2nd, and 3rd declensions of nouns Ch.22, ablatives with and without prepositions.
http://www-unix.oit.umass.edu/~glawall/EcceLink.html links to drills & vocabulary for the 'Ecce Romani' text
http://www.stoa.org/~mahoney/teaching/vocab200.html a list of the '200 Essential Latin Words' for translation
http://www.cambridgescp.com/singles/GCSE_voc/GCSE_voc.html how good are you at Latin vocabulary? use the timed drills to test your speed and knowledge. just click on any of the 'vocab testers'
http://www.tabney.com/subjunctivelatin.html scroll down and practice the forms, uses, and translation of the subjunctive mood
http://www.dl.ket.org/latin3/grammar/ filled with paradigms and explanation on points of grammar.
http://www.cambridgelatin.com/ drills on the various stages in the Cambridge series
http://www.vanalstyneisd.org/Latinpg/game.html more drills on the Cambridge series
http://www.cambridgescp.com/latin/clc/onlineA/clc_onlineA_b1.php even more drills on the Cambridge series
Perseus Digital Library Be sure to check out the 'Exhibits' at the bottom of the page: just click on 'Hercules' or 'Ancient Olympics' to have a illustrated tour of the topic.
For more on athletics/entertainment, read this article: http://www.dummies.com/WileyCDA/DummiesArticle/id-1434.html. This site contains countless images of sculptures, architecture, vase paintings, coins, etc from the ancient world. It also contains both the Latin and English of the major authors in Latin literature (and the Greek and English for the major authors of Greek literature).