[loudmax]

In my case, a Lenovo ThinkPad, but there are other lines of laptops that are well supported. If you're buying a laptop to use with Linux, you really ought to do some research first because not all vendors make provide enough documentation for drivers to be developed. If you go to install Linux on random hardware, there's a chance you'll uncover weird driver bugs like wireless or audio not working after resume from sleep. Even so, there may be a workaround (eg. reloading kernel modules) if you expend some effort.

If you're buying something new, you should use Linux's 1% or whatever puny desktop market share to reward hardware vendors that support open source. If you're installing Linux on whatever's lying around, be prepared to spend some time tracking down strange bugs.