Het kan nooit snel genoeg zijn...ook een laptop. Dr.Evil's Damage Lab heeft wat info over hoe je die kunt overklokken:
One example I know of is the Toshiba Libretto, which has an overclocking guide. The later issues of the Libretto 50CT,in particular, are a safe bet for overclocking; when Intel stopped making mobile Pentium 75's, Toshiba just stuck in mobile P-120's and underclocked them to 75 so the 50CT wouldn't compete with the higher models in the Libretto line. These machines can be clocked up to 120 without even exceeding the rated speed of the processor. The guide also reports model 100 Librettos being overclocked from 166 all the way up to 266MHz--quite impressive.
Another plus here is, based on the information on the Libretto page, it appears Intel hasn't put any sort of multiplier lock on the mobile chips, meaning you don't have to make do with bus speed changes to experiment with overclocking.
Having said that, however, I'm not sure I'd recommend overclocking a notebook, except in the aforementioned 50CT case where you're really "properclocking" it. (Hmm, sounds like a word Orwell would make up.) There are several reasons why I say this.
First, most laptops don't have the luxury of an active cooling system (a fan or fans) like desktop systems do, and overclocking can potentially generate a lot more heat, which becomes more of a concern in the tight, little spaces inside a laptop. Get things up to a nice oven temperature in there and you could do bad things for the long-term life of all the laptop components, though I doubt you'd have a rehash of the "Flaming PowerBook" episode or anything. 8-)