Nothing I know about as far as hands on over the net.
There are several folks selling virtual weld apparatus.. ($45K).. They are nice and cut down on the learning curve, but the pirce is very high. But where the rubber meets the road you need metal and heat.
The net is full of technical help however. Advice on technique, process and procedures. There are thousands of hours of practical demonstrations on Youtube. Some are better than others. (eat the meat and spit out the bones)