cbnet Ping Optimizer
Save your wordpress blog from getting tagged as ping spammer. WordPress blog
pings unnecessarily every time you edit a post. Avoid it with this plugin.
Will automatically be pinged when you publish new posts or drafts. Not when you publish future posts or edit previously published posts, as WordPress does by default.
WordPress Ping Optimizer
When you create a new post, your blog will ping and notify all the ping
services that it has been updated. This encourages search engines and different
blog directories/services to index your updated blog properly.
When you edit an existing post, it won't send any unnecessary ping to ping services and saves your blog from getting banned by such services.
When you post a future post by editing the time stamp, it will ping only when your post appears in future.