Business / Search Engine Optimization (SEO) / Spam: Unsolicited email messages. Search engines also like to outsource their relevancy issues by calling low quality search results spam. They have vague ever changing guidelines which determine what marketing techniques are acceptable at any given time. Typically search engines try hard not to flag false positives as spam, so most algorithms are quite lenient, as long as you do not build lots of low quality links, host large quantities of duplicate content, or perform other actions that are considered widely outside of relevancy guidelines. If your site is banned from a search engine you may request reinclusion after fixing the problem.
Business / Internet Marketing / Search Engine Spam: Excessive manipulation to influence search engine rankings, often for pages which contain little or no relevant content. MORE
Technology / Email / Spamcop: A blacklist and IP-address database, formerly privately owned but now part of the email vendor Ironport. Many ISPs check the IP addresses of incoming email against Spamcop's records to determine wheth MORE