The following graphs compares the ADP vs. the BLS reports.

ADP August Employment Report
Nonfarm private employment grew 38,000 from July to August of 2007 on a seasonally adjusted basis, according to the ADP National Employment ReportTM.Last month ADP wasn't close to the BLS data for private sector employment. Still, this is the second consecutive month with the ADP report showing weak employment gains for the private sector. Last month the ADP report showed private sector employment increased by 48,000; the BLS report showed the private sector increased 120,000.
This month’s ADP National Employment Report suggests that a deceleration of employment may be underway. The August increase of 38,000 was the smallest since June of 2003 and the second consecutive weak monthly reading.
Perhaps the BLS is missing the turning point.