- http://en.wikichecker.com/user/?t=Compfreak7
- http://content.paragr.am/wpuser/?lang=en&tz=local&query=Compfreak7
- https://en.wikipedia.orgview_html.php?sq=Google&lang=en&q=Special:RecentChangesLinked/User:Compfreak7
- http://tools.wmflabs.org/guc/?user=Compfreak7
- https://en.wikipedia.orgview_html.php?sq=Google&lang=en&q=Category:Internet-related_lists
- https://en.wikipedia.orgview_html.php?sq=Google&lang=en&q=Category:Lists_of_websites
- https://en.wikipedia.orgview_html.php?sq=Google&lang=en&q=Zipf%27s_law