Lengthy paragraphs are off-putting, but I do appreciate that brevity is a tricky skill to master! If you struggle with short copy, write your main body copy out in the manner that feels natural, and then take a (metaphorical) knife to it afterwards. You’ll be amazed at what can be cut without losing any of the sense or feel of the piece. If you really can’t cut it down, try chopping your copy into sections, or offering a ‘Read More’ option leading to the website.
Every week, the folks at InVision send a roundup of their best blog content, their favorite design links from the week, and a new opportunity to win a free t-shirt. (Seriously. They give away a new design every week.) They also sometimes have fun survey questions where they crowdsource for their blog. This week's, for example, asked subscribers what they would do if the internet didn't exist.
That isn’t to say that sales-y promotions couldn’t ever create results—as marketing “gurus” have proved. The results just aren’t as good as they could be. Take the biggest gurus’ results—the ones they boast about—and calculate their conversion rates. Often their marketing is comparatively ineffective. They just have massive volume, so the sales numbers are impressive.