Welcome to WebmasterWorld Guest from 220.127.116.11
If you believe that another site is abusing Google's quality guidelines, please let us know by filing a spam report. Google prefers developing scalable and automated solutions to problems, so we attempt to minimize hand-to-hand spam fighting. While we may not take manual action in response to every report, spam reports are prioritized based on user impact, and in some cases may lead to complete removal of a spammy site from Google's search results. Not all manual actions result in removal, however. Even in cases where we take action on a reported site, the effects of these actions may not be obvious.
How can I explain all this? Listing the 23 domains themselves is more than 300 characters.
Create a spreadsheet on Google Drive with all the findings and share a link to the spreadsheet.
Just because you report spam, does not mean Google will take action.
They look for the obvious stuff like shared analytics account
Spend your time improving and promoting your own site.
[edited by: goodroi at 10:25 am (utc) on May 7, 2014]
[edit reason] Please no calls to action as per TOS [/edit]