A very interesting series of thoughts came to mind, I thought that must be shared with readers. Surrounded by an idea (which may sound very impossible).
Google search does not have an Achilles heel!
While Page Rank and Google indexing algorithm is powerful and unique enough to catapult a flat road, especially the other search engines in the world of Web 1.0 - and effectively destroy each with a single blow ... do not think this is going to celebrate in the coming years the world of Web 2.0.
To understand my argument - I assume that the reader is familiar with what is the Page Rank of Google and how it goes about indexing pages in inspections.
Ok. Lets go back about 10 years. It was easy the game engines themselves (called spamdexing) and anyone with some knowledge could easily get listed on top. In fact, if they spam eengine and appear 10 times on the homepage - it was easy.
But a bigger war between coders Webmasters and search engine logic ... in which each tried to leave at the top and be smarter than the other. Search engines change their algorithm to adjust to the fight against search engine marketers smart / webmasters who learned to master for any keyword. It was too easy. There were as Web Position Gold software that helped produce the highest score anyone - guaranteed!
Thus, these 2 guys had a great idea and were handy. Since it was not easy at that time to obtain backlinks and reach a large number of sites pointing to your website - overcoming the Page Rank algorithm, it was not easy ... if not impossible.
But of course, some people learned this (and still are) - called Search Engine Marketing. Thus, they claimed that they can include it in the top of Google or on the first page for $ $ $ or your money back. And if you want to master the art of SEO (Search Engine Optimization) - you can read some of the ebooks written by professional and even take some assurance systems as SEO - who tend to take advantage of "copy" of your competition, then do better to win seats.
This is where the danger lies.