I’ve started to receive emails from domain registrars announcing an increase in the price of .com and .net domain names, “based on the VeriSign and Neustar announcements” of price increases in 2012.
The price you pay for .com and .net domain names depends on the domain registrar you use, but I imagine the increases will generally be across the board. You’ll probably receive an email announcing a pricing change sometime in the next few weeks.
You may consider paying for additional years of registration for domain names you plan to keep for a while, and you may wish to renew soon to expire domain names before the increase takes effect. If you don’t receive a notice of a price increase, you should reach out to the support department at your preferred registrar to ask, or ask an account representative.