No matter how much attention the latest social media or mobile marketing strategies may get, they pale in comparison to the effectiveness and reach of the long-standing twin engines of Internet marketing - email and search engine marketing (SEM).  These two media provide direct and reliable exposure in the most commonly used Internet applications, making them powerful and predictable online marketing channels.

Here's how to tell if your email list has the winter blahs:
* Your opt-ins are growing, but your email open and click-through rates are plummeting faster.

* You bounce more email every time you send.

* More than half of your list hasn't opened or acted on a single email in the last six months.

Marketers, it's time to put down the fire hose. Your email subscribers are more sophisticated today and more particular about what they want to receive - and it's not a steady stream of undifferentiated messages blasted relentlessly to a mass audience.

Want a foolproof way to increase your email and search engine marketing success? You may not realize it yet, but the answer isn't necessarily in the subject line or the ad copy - it's in your campaigns' landing pages.