Google
takes all spam attempts seriously. The techniques
that Google considers as spam are:
i)
Hidden text
This
means there should not be any text or links
that can be seen by search engines but not by
visitors to the site.
ii)
Stuffing of pages with irrelevant words.
iii)
Doorway pages
Generating
doorway pages, multiple domains or sub domains
with essentially the same content. It is better
not to use programs that generate many generic
doorway pages.
iv)
Tricky redirects.
v)
Cloaking
vi)
Typo spam/cyber squatting (for example www.yahhoo.com)
vii)
Identity theft/page jacking.
viii)
Participating in link exchanges
It
is considered spam if any site is participating
in link exchanges for the sole purpose of increasing
your ranking in search engines.
ix)
Sending automated queries to Google in an attempt
to monitor one's site's ranking.
Classification
of search engine Spam techniques
Penalties
for search engine spamming
How
Inktomi Search Engine Reacts to Spamming
Just
say NO to Search Engine Spamming