TechReviewSource.com compared the MacBook Air against Ultrabooks

The MacBook Air set the bar for thin and light laptops, but the first crop of ultrabooks are all set to challenge the incumbent from Apple. Marrying a strong, sleek looking unibody chassis with flash memory put the svelte MacBook Air under a lot of people's arms. Suddenly, there was the ultrabook functional laptop that you could do work on laptop you can tuck under your arm and take anywhere.

  MacBook Air vs. Ultrabooks