SeoBunny has a good illustration for a link wheel, but I don't see the implementation of RSS feed from any of the properties? Also, I am not sure why you would point any properties to a forum profile? Is it for randomness of the structure wheel. The best augment for a link wheel is if you have your own private network of pages with PR, and the most important aspect is to create a more random or natural effect to the wheel. At this point, the structure is so convoluted that it would make sense to anyone if you charted it out with a graph, and that is how link wheel structures should be done. Video implementation is a must, and the OP using one keyword is true, but having the link from one web 2.0 to another should be at the top, and the other link at the bottom.