As always when things are too good for being true stuff happens. link wheel used to be most effective build up site rankings until recently. Google and bing, Yahoo and Bing have now all figured this out and also have started to discount any link wheel efforts. For this reason it is always best if you stick with traditional back linking strategies rather then get quick schemes. If you are unfamiliar with link wheels then good for you. A person missing anything and might have saved ones webmaster headache. Now link wheel service are only one of several things that are promoted now a days that say you can boost immediate rankings results. Just imagine the amount of get rich quick scams there are. Same were applied to the SEO world. Keep in mind there's only one way to properly go about search engine ranking without ever getting in trouble.