Teamliquid.net is a great hub if you're happy to read.
day9tv.blip.tv is probably one of the best, and youtube for huskystarcraft, or hdstarcraft as their channel has a lot of content aimed at multiplayer beginners.
Really, the best thing a beginner can do is find a basic 'normal' opening build. Like for Protoss, 9 pylon, 12 gateway, 14 gas, 16 core, 17 pylon.. (the numbers are your supply count in the top right corner). I don't know the zerg or terran ones that well but it wouldn't be hard to find them. With a basic build you can at least get a few units together enough to go out and just attack.
Don't try and be cute, don't try and build a million tech structures. If you're terran just build 2 barracks, put a tech lab on one, a reactor on the other build 4 maurauders and however many marines you can, and just go attack. With terran, as 16-18 supply build your orbital command so you have access to mules (and the massive econ boost they give you). Hot key your command centre to 5 or 6, so you can just reflexively go 5-ss to keep producing scvs. You will want to keep doing this until you get around 30-34 scvs (then you will want to think about expanding).
Once you get a basic build together, can make a small army and go out and attack, from there experience, watching and reading on tl.net/here/youtube will help a lot

At your level simply attacking with a 2 rax build will get you wins. Since if your opponent does anything else he'll not have the forces to fight you.