If it's got it, sell it...Yahoo! is looking to sell online word processing services as it hunts for other revenue streams in the wake of declining online advertisement sales. The portal is currently hosting a survey on its site to test demand for Web-based office applications. Questions ask users about interest in a "full suite of office productivity tools available online through a browser, handheld devices and Web-enabled cell phones." They are also asked about how much they would pay for these services, how much customer support would be expected and whether fees should be on a monthly or annual basis.