Welcome to the KH everyone!
Take some time to look around at the different forums to see how we are set up. There are forums for questions, sharing, knit-a-longs etc. At the top of the forum there are some tabs that have videos, patterns, glossary, etc. There are sticky posts that offer helpful information on various topics at the top of each forum as well.
Feel free to ask questions if you need help. There is also a handy search feature that can give you a wealth of information from users who may have asked the same question when they were learning.
Search the forum
In addition to the great videos here in KH here's a few more helpful sites.
Lion Brand - Learn to knit
Knitting at Noon Videos