Actually, as a marketing consultant I've been getting away from printed forms of advertising, marketing and PR lately simply because they're cost-prohibitive for a lot of my clients, who have to get the very best return on investment. Lately, social media and search engine work has been a better marketing method simply because of the low cost.
But I've always liked postcards and still do. It adds "real world, " tangible legitimacy to a campaign and draws attention to your website and other online media without a lot of cost. It also prevents the problem with a lot of mail - people don't bother to open the envelopes of anything but bills! But an eye-catching postcard doesn't need to be opened to get the message across.
So, here's an endorsement for the humble postcard (snail-twitter!) from a hard-core social media junkie.
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