These publications are only relevant if you're building a tech business - eg one that sells to tech businesses or consumers. If you're doing anything else then these are worse than useless because they'll distract you from things that will help your company grow. Find the media that your potential customers read and target those publications and the journalists that write for them. Build relationships with them. Resp…
I can get a list of 200 or so reporters who would be very interested in hearing about my product (and often have written about competitors), and send them (personalized) emails in a few hours. I usually get about 20 write-ups when I do it right.
http://austenallred.com/user-acquisition/book/chapter/press/