Google Apps account and Google account have separate permissions

Two popular social broadcasting services, HelloTxT and Ping, deliver massive messaging support for a bunch of social networks. However, the former fails to post to my Google Buzz while the later does.

In my case, I use Google Apps mail and have a Google account set up with the apps mail address. However, Google Buzz is currently only available for Google account so that a social broadcasting service needs to clarify the right account for Google Buzz. It's a no-brainer HelloTxT confuses the two accounts' email addresses and unexpectedly links to the Google Apps account whose Buzz is unavailable.