Hey everybody,

I've recently begun building an opt-in email list for a pretty specific purpose (sending out a sample high paying keyword daily).

Would it be considered "bad etiquette" to add an advertisement below the sample in each email, or is that an acceptable practice?

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Absolutely NO!!! It's an acceptable practice.... you ultimately have to make money. You can either do it by showing ads or selling something and here you are showing ads!

So, going ahead with it would NOT be considered as "bad etiquette"

Good Luck!

Just as long as it is tasteful and not overbearing.

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Image Freak

As rex_b said, make your content dominate, not the ad. But you are certainly within your rights to place an ad there.