The new wave in advertising is this concept behind 500words.com. I think it only works if you have a strong mailing list, but anyway - I thought I would pass this one on:
If you’ve seen the concept behind the 500words.com site then you know what a Link Tag Cloud is for advertising. Well, here is a pretty affordable one that is directed specifically at the Real Estate Investing industry. So if you sell services or products, or buy/selll properties you may want to take a look at it.
REILinkWords.com