I haven't done it myself because my wallet isn't deep enough but I've seen it be very successful for my competitors who's emails make it into my inbox and I the

I haven't done it myself because my wallet isn't deep enough but I've seen it be very successful for my competitors who's emails make it into my inbox and I then check their Google link: list that shows it does actually work. Lame or not the proof is in the search engine result position.