I have given a try to the BING system however I want to ask some of the members here when is the best time to invest in BING advertising? Not only that but which campaigns work best on BING advertising center?
I don't know if there is a 'best' time to advertise unless you are a seasonal product or service. Traffic and costs are always proportional to the time of year. it's also difficult to say exactly what works well in Bing as there are so many variables. You could have a great niche but a real poorly converting site. My experience with Adcenter is that while it's traffic is a lot less than that of Adwords, it does convert a little better. My advice is try whatever niches you are comfortable with, and see what happens.