Add more Pinging Services – which and how?

Ping sites more than once and you risk being banned – the ‘big’ lists usually hit the multi-pinging sites (like pingomatic) so being banned is very easy.

Also, even if the list be huge, some might not be appropriate for your blog – say like a site that tracks only Japanese blogs (Assuming your blog is not in Japanese.)

Pingomatic covers the important once, and like Podz said you only ping once ??

And what about https://www.pingoat.com/ ?