Disagree for the most part. There's always something that can be given away for free: blog posts, free trials that lack support and require a paid upgrade for i

Disagree for the most part. There's always something that can be given away for free: blog posts, free trials that lack support and require a paid upgrade for it (e.g. Magento), ebooks, contest giveaways, etc. If you can't give something away for free as part of your marketing, you're probably not thinking creatively enough.