Hello I done everything you've suggested turned on my home sharing on my PC & my laptop went on my iPad 3 and my new iPhone 5. When am on my iPad I go to the music app select the more button but I can't see my library & did the same for my iPhone, I did go to my settings on both my Devices to ensure home sharing is connected using my apple Id/pw with no luck. I am on the same wifi network w/my computers & devices. Any Suggestions why i cannot see my library? Any advice would be greatly appreciated!

I found the problem, my bad didn't have my iTunes open on my PC my bad! Now I can see my library on my devices, yeah! So proud of myself for Figuring it out, dumpy me. Leaned something day. Happy holidays everyone. I will one day be computer Savvy.