I remember spending hours and hours on DigiKey and Mouser looking for the right components for the prototype we were building. It's a huge pain. Especially the low value resistors and capacitors. We later found out that we should have fist checked if the parts were available before we did the design (the design itself was from reference design provided by manufacturer's, outdated). I wished Google would get into Electronics Part searching. But then it's too niche an area for Google.