...black Hat! and maybe Made In Japan
Black hat applied in the Search Engine Optimisation (SEO) industry, uses SEO tactics that attempt to redirect search results to particular target pages in a fashion that is against the search engines' terms of service. White hat methods are generally approved by the search engines.
Some of the blackhat SEO tactics include: keyword stuffing, hidden text and links, doorway and cloaked pages, link farming and blog comment spam.
Getting off a blacklist is difficult and can be a frustrating experience - Don't black Hat!
Optimisation is a bit like a Russian Doll - each layer comes apart to expose another layer, which then exposes another layer, each reveal, each step gets you closer to the main core and leads you to a final goal. In reverse each layer you build over the core makes the centre appear bigger, spreading outwards.