ping service

What's the best ping service? Is it worth paying for a good ping service, or just using the free ones? I have a ton of URL's I'd like to get noticed, is this the right way?

What is Index Me? ? Is a Free Ping Service and an Accelerator for Fast Indexing on Google, Yandex, Yahoo! Bing, Ask and other search engines. Thanks to Index Me, You Boost the Traffic, Ranking and Indexing of your Blog, Site, Feed RSS / Atom and Backlinks with a One Simple Click. Visit...