Pinging is definetly the best way to get indexed faster.
WordPress should be set up to ping Pingomatic by default, which should pass the ping on to us. Or you could ping us directly, by adding https://www.blogdigger.com/RPC2 in your WordPress configuration as an additional ping service. When you post a new entry to your blog, the ping will alert us that you have updated, and we will schedule your blog for a recrawl.
Hope this helps, if you’d like to email me, I’m at greg AT blogdigger DOT com. Thanks!