Use the Automatic Service Ping

Lately it occurred to me why I do not use automatic pinging services like Pingomatic or Pingoat

rather than pinging one by one. With automatic ping, we can directly ping to tens directory.
Ping Service aims to inform search engines when new posts on our blog. So the goal to invite robots Search Engine.

So for those who like SEO, automatic pinging this could be one alternative that can be selected.