And after you press submit on YOUR new post, then you inform others, here's the suggestions:

Alexa
http://www.alexa.com/siteowners/claim

Bing Webmaster Tools
http://www.bing.com/webmaster/

Google Webmaster Tools
https://www.google.com/webmasters/verification/verification

Pinterest
https://help.pinterest.com/entries/22488487-Verify-with-HTML-meta-tags

Yandex Webmaster Tools
http://help.yandex.com/webmaster/service/rights.xml#how-to

Yes, all 5 of those. then submit articles to the names in that image, ok?