To everyone calling this spam, the author is a well respected member of the Ruby community and has already written a ton of information on the subject, for free, at his blog (http://omgbloglol.com/). He also wrote the rails-upgrade gem. I'm sure at least a few people here will be upgrading current rails apps to version 3 when it comes out so I could see it being of interest.

What's wrong with

http://guides.rails.info/3_0_release_notes.html

After scanning through most of the PDF, the Release Notes are mostly superior. JM provides some decent info though, and the checklist at the end will be useful to people. Worth 12 bucks probably.

I figure it it saves me 10 minutes- then it was definitely work $12.

It's free. ;-)

Are you planning on releasing a physical copy?

This is a link to a site which does nothing but selling a electronic book...

It does seem like spam to me. I don't see a conceptual difference with the Viagra emails i frequently receive.

For one thing, the author of the ebook is a frequent poster here, which should give it a little more weight than a viagra email.

Plus, there have been plenty of links about the transition to Rails 3, and this looks like it could be a handy ebook, especially if it goes more in depth than the release notes and basic migration guide.

It's a paid content that is useful to some here (hence the upvotes).

Do you mean paid content or services shouldn't be posted here ?

yep, and viagra is usefull to some people with emails... your argument is not convincing. This is cheap dialectic.

oh and additionnaly viagra is usefull to some people reading HN... do you mean it is ok to advertuze viagra in HN ? (i can do cheap dialectic too :)

more seriously, this 'news' is clearly a spam and lets please avoid spam on HN.

If you stop and think about it for a minute, Rails is fairly topical for this site, whereas e.d. is not.

I think there is nothing wrong with trying to sell something that you've worked hard on; isn't that what most of us are doing here?

That said, I didn't vote this up and don't think I would buy this book.

well i dunno for you but i see very few 'news' which are direct links on the products sold by the posters. So no, i dont think this is what most of us are doing here.

i wont talk on this thread again. no hard feeling here, just trying to avoid more spamming in the future. have fun

> your argument is not convincing. This is cheap dialectic.

There was no argument or dialectic: I was just giving my opinion and asking a question (ie not trying to convince you), because I was curious to know why you had this other opinion.

The reflexive anti-commercialism one sees in this community really surprises me sometimes. Startups are nothing if not commercial enterprises!

Do you really think HN would vote up a viagra spam blog?

How is this any different than a member posting their startup (that charges money)?

He created something of interest to the community and charges for it. I love free content but I still think it's great that he created something of value and is asking for money. What's wrong with that?

The only thing better would be if he followed up with a post about how it went and what he learned.