Ybenharim

October 2009

Please do not add inappropriate external links to Wikipedia, as you did to Table of mathematical symbols. Wikipedia is not a collection of links, nor should it be used for advertising or promotion. Inappropriate links include (but are not limited to) links to personal web sites, links to web sites with which you are affiliated, and links that attract visitors to a web site or promote a product. See the external links guideline and spam guideline for further explanations. Since Wikipedia uses the nofollow attribute value, its external links are disregarded by most search engines. If you feel the link should be added to the article, please discuss it on the article's talk page rather than re-adding it. Thank you. Dicklyon (talk) 20:28, 24 October 2009 (UTC)

Please stop adding inappropriate external links to Wikipedia, as you did to RGB color model. It is considered spamming and Wikipedia is not a vehicle for advertising or promotion. Since Wikipedia uses nofollow tags, additions of links to Wikipedia will not alter search engine rankings. If you continue spamming, you will be blocked from editing Wikipedia. Dicklyon (talk) 20:28, 24 October 2009 (UTC)

September 2011

Our feelings on this are still pretty much the same;

This is your last warning. The next time you insert a spam link, as you did at Ohm's law, you may be blocked from editing without further notice. Persistent spammers may have their websites blacklisted, preventing anyone from linking to them from all Wikimedia sites as well as potentially being penalized by search engines. SpinningSpark 19:41, 29 September 2011 (UTC)