Princeton Learning Systems

Yipinet, the Marina del Rey start-up that provides professional continuing education courses over the Internet, is expected to announce today that it has acquired rival Princeton Learning Systems of Princeton, N.J., for an undisclosed sum. The purchase, which officials said won't involve layoffs, will extend Yipinet's offerings into the financial sector.

Yipinet, the Marina del Rey start-up that provides professional continuing education courses over the Internet, is expected to announce today that it has acquired rival Princeton Learning Systems of Princeton, N.J., for an undisclosed sum. The purchase, which officials said won't involve layoffs, will extend Yipinet's offerings into the financial sector.