41.   Advertising is something of a sore subject at Yahoo!, which has seen its stock price and online ad rates fall dramatically this year.

42.   And online ads still hold a powerful trump card over other ad types by permitting impulse buying.

43.   If subscribers spend more time online, then the company could boost rates for online ads and get commissions from shopping sites.

44.   Purveyors of free Internet access have struggled as revenues from online ads dwindle.

45.   Spokesman Mark Horan said he could not disclose if a deadline for selling the online ad unit or moving ahead with additional layoffs has been set.

46.   The company also hopes the new features will encourage subscribers to stay online longer and allow AOL to boost rates for online ads.

47.   The slowing economy and failure of many dot-com businesses have significantly dampened revenue growth, and many established companies cut back their online ad budgets.

48.   Users might conclude otherwise because individual airlines dominate service to certain cities, and those are the same markets the carriers target with their online ads, he said.

49.   Despite all these problems, advertisers acknowledge the enormous potential for online ads.

50.   The survey found children do not distinguish between content and advertising, and are much more likely to click onto online ads.