Traffic sources: Forget what you think about tech PR
tripl.tumblr.com
tripl.tumblr.com
You must be looking at a different website at the domain 'techcrunch.com' than I am.
I cringe every time there is a good discussion going on HN over a TechCrunch article, because I just know it will inevitably lead to safari crashing on my iPad.
Rather than focus on publicity, people should hang out in the communities where their target audience is. If you're building a travel site, that means Lonely Planet forums. PR is just smoke and mirrors. What really matters is reaching the people who will really use your site.
Oh, and I also agree with gojomo: would be very interesting to have followup data, most signups, most active signups...
I'd offer you'd be much better off using your resources to gain customer-traffic rather than industry-traffic. Spend the same PR resource getting into the publications and websites run by the people who will actually give you money or engagement.
Moreso than traffic, which resulted in the most signups (absolute or as a percentage of visits)?
Which cohort of signups had the most still-active users weeks/months later?
The service would seem to be of more interest to dedicated travelers than the kind of tech/startup junkies who visit HN/TC/TNW. Have you had any traffic/signup surges from coverage in travel-focused forums to compare?
For example, I once received 150,000 views through a Reddit/pics submission on my Flickr account. If the New York Times featured my photo on the front of its Travel subsite, I would bet my Flickr photo page would get a negligible number of hits...it's as another HN commenter noted, HN provides more click-throughs because HN only provides links, not articles.
I would also wager that the NYT Travel section gets fewer than 150,000 views a day...but in terms of bragging rights, if I were to try to shop my portfolio around as a professional photog, front page of the NYT Travel would mean a lot more than front page of Reddit/pics.
If you were a VC investor, would you be more willing to evaluate a startup that made it to the front of HN or was validated by a TN post?