Either Bakugan: Battle Brawlers or Tokyo Mew Mew (or Mew Mew Power as it was known here) The first anime I watched online, though, was Black Rock Shooter.
There were some animes I watched as a kid, but I only saw a few episodes. The first anime that I decided I want to bench watch was Avatar the last airbender :3 BTW does anyone know if avatar korra is any good? I think i watched the first half of the first season like 2 years ago. Is it still good?
CardCaptor Sakura way back then! Along with the same 5 episode of Dragon Ball Z and Pokemon we only had dubbed in french on tv here because internet streaming didn't existed back then.