Where To Ping Your Blog
First I want to tell you where you should NOT ping your blog. My personal opinion is that you should not use Pingoat. Here is why. Pingoat was created by Kailash Nadh. But this guy has also created many other projects and one of them is a spam blogs search engine called SplogSpot.
This service is monitoring Pingoat and when it will see a blog that is pinging to often it will mark it as spam blog and will add it at the database. Now I don’t know if major search engines consult this site but why risk it? Believe me, you don’t want to be in Splogspot’s database!
In his blog he says that both services were acquired by third parties but I think it doesn’t matter. I think both services are working together.
So where to ping your blog(s)? There are many services but the best I have found are these:

definitely is a actually well thought out read. I certainly enjoyed reading it. Thanks alot!