The Wall Street Journal says investors and bankers are watching Groupon’s public offering, scheduled for this Friday, as an indicator of how forthcoming IPOs might fare. The paper calls out Zynga’s and Angie’s List in particular, and goes through the usual stories about Groupon’s marketing spending and accounting metrics. Bloomberg says Groupon has to go public because it needs cash more than it admits, and is getting close to the upper limit on the number of shareholders it can have and remain private. It also said earlier that demand for the IPO was high, and the company might raise its pricing. This in the face of reports that BuyWithMe’s assets are being acquired by Gilt Groupe. Here’s our take on who is positioned to thrive during the daily deals shakeout.