[thelist] users at once

[Jay Blanchard]

[snip]
what would you think is a good number of users hitting the site before 
you get a noticable performance drop? is there benchmark? if i can only 
promise 1000 all hiting the site at once, could the client do better 
elsewhere? is some hosting better known for handling high demand?
[/snip]

Two.

j/k

Really this depends on the server setup and bandwidth available to the
server and several other things. If 1000 folks are expected to send a
request all at the same time there might be a slight lag, but so many
factors influence this that it would foolish to posit an answer.