Building LinkWheels is a great SEO strategy (mainly because it's free). Yes, it can be a little time consuming, but you can easily create 10 sites per day with your desired long tail keywords as incoming links to your main site. I have compiled short list of the most popular linkwheel services to create your blogs on. I hope you find it useful and bookmark it if you use them often. All of the listed services are free of charge and easy to use.
Yet now I haven't tried any link wheel things. I fear of getting kicked out from Google. BTW, your signature linked site is very crap, missleading and full with dead links.
Nothing wrong with building link wheels, you just need to put a bit of extra effort in, stop with closed-wheels and look into open-wheels, mix it up a bit and add some random pages here and there, this'll keep the links good, if you just like 1->2->3->4->5->6->1 then you won't be getting any decent results from it..