Yahoo has been struggling for years to raise its game against Google and to expand its user base by restoring the pizazz it once showed as an online pioneer. Last month it , Carol Bartz, after she failed to turn the company around after a difficult three years in the job.

Morse took over the position while Yahoo looks for a permanent replacement.

Since Bartz's departure, rumors have surfaced again that Yahoo may be up for sale. Microsoft has reportedly considered for the company, after a round of acquisition talks collapsed a few years ago. Jack Ma, chairman and CEO of China's Alibaba group, has also said he in buying the company.

Meanwhile Yahoo continues to shuffle its top executive ranks. Just yesterday, Yahoo confirmed that its chief technology officer, Raymie Stata, had been replaced.

The company has been rolling out new content, especially video, to revive its fortunes. Its new Yahoo Screen site carries shows like "Arrested Development" and "Dancing with the Stars." It says it is home to 10 of the most popular websites globally.