Shares of some top internet companies are mixed at 1 p.m.:

Amazon rose $8.38 or 2.5 percent, to $342.40.

eBay rose $.38 or .7 percent, to $55.87.

Google A fell $2.48 or .4 percent, to $588.09.

Groupon Inc. rose $.12 or 1.8 percent, to $6.45.

LinkedIn Corp. rose $2.49 or 1.1 percent, to $224.97.

Yahoo rose $.13 or .3 percent, to $37.84.

Zynga Inc. fell $.08 or 2.7 percent, to $2.93.