From Wiki "Chitika, Inc. (pronounced CHIH-tih-ka) is a search-targeted advertising company. In 2013, Chitika announced a multi-year extension of its partnership with Yahoo!. The agreement includes off–network search syndication, monetization of Yahoo! owned and operated properties, and mobile ad serving and monetization. You can opt out of their service at https://chitika.com/privacy so have only marked this as caution. Adblockers should prevent any problems but seems largely ethical with the opt out option.
Other comments are out of date. Time to provide some useful up to date information!!!
Diagnostic page for chitika.net
What is the current listing status for chitika.net?
This site is not currently listed as suspicious.
What happened when Google visited this site?
Of the 10 pages we tested on the site over the past 90 days, 0 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2013-09-05, and suspicious content was never found on this site within the past 90 days.
This site was hosted on 30 network(s) including AS209 (QWEST-US), AS4436 (AS-NLAYER), AS20940 (AKAMAI-ASN1).
Has this site acted as an intermediary resulting in further distribution of malware?
Over the past 90 days, chitika.net did not appear to function as an intermediary for the infection of any sites.
Has this site hosted malware?
No, this site has not hosted malicious software over the past 90 days.
Tracking sites are mostly useful to site owners and marketers, otherwise I block it and almost all tracking sites. I *will* turn tracking back on for sites which request it, ususally a "one time only" basis..