The latest episode of the only informative stream in the entire FGC (sadly, this's why this community sucks) UltraChen's First Attack teaches you about the basics of Ultra Street Fighter IV. This's a must-see and will be a good reference for beginners.
07:50 - Movement, normals, systems, meters
38:00 - Blocking, cross-up, throw, hit-stun, combo (chain & link), Focus Attack, Frame Advantage
1:18:20 - Delayed Wake-Up, Reversal, Counter Hit, Crouch Tech, Frame Trap, juggle, P-linking