This could be a key step for Facebook to monetize its massive mobile audience in a significant way — a constant topic among skeptics in the run-up to the company's IPO.
How to get the man who lives in the RV off our block has been a constant topic of discussion in my building.
David Stephenson, the owner of the new restaurant, The Crossing, said the possibility of a terrorist strike against the depot had been a constant topic of conversation in town.
But the dispute was a constant topic of conversation in the airport taxi bullpen, where drivers regularly spend three or four hours awaiting their turn for a fare.
The war may not actually have been a constant topic of conversation in my childhood, but it seemed to be, at least to me.
Whether Mr. Alagna has made the most of his abundant vocal gifts during his career is a constant topic of discussion in opera circles.
Protection: This is a constant topic of conversation in my Facebook group Inspired Empath.
Authorship is a constant topic for discussion in scientific publishing.
The N.F.L. is a constant topic among lawyers involved in the case, using the sport, twisting it to fit their theories.
In Utah, already-conservative Sen. Orrin Hatch has veered so hard to the right that it's a constant topic of conversation, and sometimes amusement, in state political circles.
