I think thats about as short and correct as you can get. The first few are tough to find, if you cover the whole list you have a good name (I guess depending on tld)

Can you remember it

does it describe its content

is it fun to say

Can you say it

can you spell it

Can you remember it

do people search for it

is it short

And yes I have 2 can you remember it is the most important thing. Funny can help too, but then you lean towards the site.

Thats my list of what makes a good name and in order. What I use higher than is in this list is searched, not too many two word searched terms are fun today. And yes of course short is great but I use two sites that have 4 letter .coms and I cant ever remember them, and you sure cant say them.