Pinging your blog after each post is important to your overall SEO (search engine optimization) strategy. Each time you ping your blog post, many blog directories are notified that you have some new, fresh content. They, in turn, send out their spiders to see what you have written and index your post.
Both Pingoat and Pingomatic have been down for a couple of weeks now. But they are not the only sites that offer this type of pinging service. Technorati offers the best service, mainly because they are the largest blog directory in the world. If you haven’t already, go over to Technorati and claim your blog. You will see your traffic to your blog increase dramatically when you do so, because more people from around the world will now be able to find you online through your keywords.
I have also started using Ping.in and KPing.com. These are two sites that offer a similar service to that offered by Pingoat and Pingomatic.
So keep on posting and pinging, and do no worry about which sites provide this service to you.