1Up - Review, by Nich Maragos: "...Sonic Advance 3 represents a breakthrough for Sonic in terms of managing to be varied without collapsing into incoherence." [Score: 75%] - http://www.1up.com/do/reviewPage?cId=3127736&did=1
Computer And Video Games - Preview, by Dean Scott: "Sonic seems to be slightly larger on the screen, meaning Advance 3 looks lush, but you'll only discover a lot of the kill zones by thrashing in blindly at high speed." - http://www.computerandvideogames.com/r/?page=http://www.computerandvideogames.com/previews/previews_story.php(que)id=103766
IGN - Review, by Craig Harris: "The addition of two tag-team characters in Sonic Advance 3 definitely changes things up considerably, as do the much larger and more expansive level designs." [Score: 9 out of 10] - http://gameboy.ign.com/articles/519/519497p1.html
GameFAQs - Contains guides, hints, reviews, and a message board. - http://www.gamefaqs.com/portable/gbadvance/data/918892.html
GameSpot - Offers information, news, links, screenshots, hints, and a preview. - http://www.gamespot.com/gba/action/sonicadvance3/