From Chris Lee, creator of Keywords Analyzer:

"As you know, just prior to Christmas we launched the all new
addition to our arsenal in the Keywords Analyzer subscription
service - and I am delighted to say the response from our users
judging by my mailbox has been fantastic.

Now, in case you missed the mail, or did not get a chance
to look a little closer, then we are now going to implement
a 30 day free trial so you can get to try it out.

When you use your updated copy of Keywords Analyzer - if you
select the Keywords Analyzer datacentre you will have instant
access to over 30 million current and updated keywords for 30
days.