Ping.in is described as 'Blog ping service that pings or notifies Weblog Services such as Blog Search Engines and blog directories that your blog has been updated. Thus enabling them to index your blog fast and make your content available for a larger audience'. There are four alternatives to Ping.in, not only websites but also apps for. The best alternative is Ping-O-Matic, which is free. Other great sites and apps similar to Ping.in are pingoat (Free), Autopinger (Free) and TotalPing! (Free).