With no read, I think its better to bet than go for the checkraise since many people will be more than happy to check down their pair/acehigh type hand that they wouldve called your bet with. That said, there are many times I have taken your line on the river with your type of hand(a normal value betting non-monster type hand like top pair or an overpair) when I'm online even if I have no read. It just seems like so many people online love to bet, and all you have to do to make them bet is check, which is why it can be profitable and fun to checkraise the river with the usual value betting hand.