Both RubyPDF blog and RubyPDF  software download center used to use WordPress plugin Adsense Immediately  to simplify the Google Adsense management.
Today, I got a message from my customer, that eshop cart always empty when he try to buy software, after checked, I noticed that Adsense Immediately conflicts with eShop for WordPress.
And after more research, I notice Adsense Immediately is no more a certificated WordPress plugins.
for details, please read, [Plugin: AdSense Immediately!] Beware of this plugin!Â