Does Google deliberatly "bury" relevant sites?

[darrylfoshee]

This is my first post so this may have been hashed many times - if so please forgive.
Beginning four years ago I maintained the #1 position for two entire years. Then as my site grew in popularity I began to see many paid sponsors showing up and then Google wiped my site off except for keywords and phrases that would not bring a good price-per-hit etc. Is it just me or has anybody else noticed this sort of thing?

[webmasterjunkie]

Your website URL would help.

[HHI_Golf_Guy]

Did you do anything to try and strengthen your hold on your SERP's for those two years? SEO is a constant battle with competitive KW's.

If you sit idle - even when you are at the top - your competition will blow right by.