Welcome to Wikipedia. We invite everyone to contribute constructively to the encyclopedia. However, the external links you added to the page PowerPoint animation do not comply with our guidelines for external links. Wikipedia is not a mere directory of links; nor should it be used for advertising or promotion. Since Wikipedia uses nofollow tags, external links do not alter search engine rankings. If you feel the link should be added to the article, then please discuss it on the article's talk page before reinserting it. Please take a look at the welcome page to learn more about contributing to this encyclopedia. Thank you. Veinor (talk to me) 22:20, 9 March 2007 (UTC)Reply

Orphaned fair use image (Image:Ca3dsuc1.jpg)

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Thanks for uploading Image:Ca3dsuc1.jpg. The image description page currently specifies that the image is non-free and may only be used on Wikipedia under a claim of fair use. However, the image is currently orphaned, meaning that it is not used in any articles on Wikipedia. If the image was previously in an article, please go to the article and see why it was removed. You may add it back if you think that that will be useful. However, please note that images for which a replacement could be created are not acceptable under fair use (see our fair use policy).

If you have uploaded other unlicensed media, please check whether they're used in any articles or not. You can find a list of 'image' pages you have edited by clicking on the "my contributions" link (it is located at the very top of any Wikipedia page when you are logged in), and then selecting "Image" from the dropdown box. Note that any fair use images not used in any articles will be deleted after seven days, as described on criteria for speedy deletion. Thank you. BetacommandBot 18:50, 11 May 2007 (UTC)Reply