Here is the list:
www.craiglist.org
www.zonaltrade.com
www.quickr.com
www.kijiji.com
www.backpages.com
www.gumtree.com (UK)
www.ebayclassifieds.com
www.olx.com
Above are high traffic free classified sites which can be use to promote your product/services online.
Few high traffic free classified sites list – use it for SEO & traffic

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