Videos that teach proper lifting form?

Hey guys! I want to start incorporating some strength training into my regime. Currently I do a 4 mile walk daily, Mon - Fri and I do about 30 mins more of various cardio (Elliptical or Dancing) at night. I've lost about 12lbs so far but I really want to work on getting stronger and I would like for my body to look not so flabby when I am done losing weight.

I bought some free weights off of craigslist for me and my hubby to use since they were way cheaper than a gym membership, the only downside is I have never lifted before so I really want to learn proper form. Does anyone have any recommendations of some videos, maybe a youtube channel or just some other website that has good videos? I have done some random searching but I haven't found quite what I am looking for. Thanks in advance for any and all help!