I would be very very wary of any list of supposed "H1B" jobs. I used to work for a computer company in Silicon Valley that hired plenty of folks on H1B visas. But there was no list of H1B jobs per se. A job was posted and if the company couldn't find a qualified citizen or permanent resident after a certain amount of time, they widened their search to include foreigners with "unique" qualifications, though the job was hardly restricted to those seeking H1B visas.

At any time, if the employer can find someone local or already qualified to work in the US, they will take the cheap and easy way out - even if they wind up hiring someone technically a little less qualified.
Cheers,
Bev