If you are struggling to come up with marketing ideas look at what has already worked. Start with a random number, say 5 and work your way up to 120, combining the number with words like
top tips ways and other such common words found in winning headline formulas Search for those sorts of phrases and you will run into lots of good stuff in the search results. And you know the story was seen by many people because for it to rank for that sort of stuff it typically either needed to get lots of links or get published on an authoritative site.
If you are in the legal field you can substitute the generic words like tips with laws or criminals. If you are in the tech field you can substitute generic words like tips with hacks or nerds.
There are also a wide variety of other ways to find ideas that worked, like
search Digg or Del.icio.us
track what bloggers write about in an industry
look for what brands you see mentioned most commonly outside of the core related industry and research why people are talking about them
Marketing is 50% recycling and 50% packaging.
Oddly enough, near the top of 10 ways was the top 10 ways to destroy the Earth. Here is a screenshot: 
Looks like AdSense may have jumped the shark. The packaging says it may destroy the Earth!
Designbook.com