There is only way one to get steady, long-term results and that is to play by the rules!
Like many things in life, there are short-cuts. With search engines, however, you take these at your own peril. If you or your web designer do not fully understand the rules that the search engines expect you to abide by in the design of your website, you run the risk of having your whole site banned from the best search engines!
In an effort to attain quick results, some website designers try techniques which are frowned upon by the major search engines. These techniques sometimes yield short-term results, but later the whole website gets dropped like a ton of bricks never to be seen again.
So, learn what to do, and what to avoid. Alternatively, call in a reliable search engine marketing specialist!