i don't know about tutorials,i myself began to learn Turbo pascal @ my university(yeah they used to teach it back then),I got this professional turbo pascal book,and i can tell u that once u know for good a programming language ,all other languages will be similar in many aspects.
so if ur starting to learn c or any language as ur first languae ,i think that studying it and learning it from a book along tutorials will be very helpful and will make it easier to learn any other languages in the future