In Search Engine Optimization, your keyword margin for error is very large. If you use a keyword in a way that just doesn’t seem to be working, you can adjust it and try again. You may even find yourself starting to rank for keywords you didn’t think about. Those are a bonus, and you can chalk them up to extra traffic and possible conversions. You’ll also want to reassess your keywords every now and then to make sure there aren’t new trends, technologies, products or ideas that weren’t popular when you first did your research.
Since organic optimization doesn’t attach a fee per keyword, you shouldn’t shy away from the high competition terms that you may not get. It doesn’t hurt to compete for those, and, it makes it easier to match up for long tail keywords. And when it comes to the users, it makes your site much cleaner, because instead of having headings like “Winnipeg Blue Bombers Hatsfor your baby”, you can stick with “Blue Bomber Hats” or the more specific but still high volume “Winnipeg Blue Bomber”. It’s important to adjust the depth of the keyword to the depth of the site, with your landing pages using broader keyword matching and leaving it to your categories to be more specific.
On the other side of the spectrum, the margin for error in PPC is small. Every time you make a mistake, it costs you money. Every time that you bid on a new keyword, it puts you in direct competition with other sites. You need to go over your keywords with a fine tooth comb, cutting out those that aren’t working, adding negatives, researching new trends, and always the cost per click in mind and the other on the Quality Score. You need to make sure you’re using themes to categorize your keywords, that your copy is performing as well as it possibly can, and that your tight ad group/keyword strategy extends to your landing page and the way keywords are used on it.