Up to a point, yes.

I tried to use as broad a range of places as I could find. I bought the Guardian every Thursday for the ads in the Tech pull-out, until they cancelled that. I subscribed to Computing and Computer Weekly and went for any print ads in there, too. I applied to a few from New Scientist as well, borrowing friends' copies or going to the local libraries.

There are indubitably many ads for each role, and also fake ads for agencies wanting lots of people on their books, but you can't really tell real from spam, so I just applied for them all.