Update links

Both the links below are dead urls.
* http://s272568090.onlinehome.us/reddit/karmanaut-redditmap.html
* http://www.collective-research.org/content/statistical-analysis-1-months-link-voting-activity-reddit

I would also like to politely ask for a backlink to my r/IAmA archiver/indexer/categorizer site bestofama.com

Regards,
Andey