To any pay per click advertising veteran, it is well-known that bidding on misspellings of keywords is a good way to cut down on the cost per click of your campaigns. In competitive industries, however, your competitors are also aware and even commonly misspelled keywords can become very expensive to bid on.
A misspelling that is often overlooked, but common in virtually any industry is leaving out a space between words in a phrase.
People are busy. They type fast. Look at a document you recently wrote quickly. It's very likely that there is a space missing somewhere. The same holds true for your market.
Let's say for example you are in online marketing. Bidding on the phrase "online marketing" will cost you about $5.72/click while bidding on "onlinemarketing" will only cost about $2.26/click.
If you decide to bid on misspellings like these, you should set up an ad group specifically for that and not use keyword insertion in your ads. Using keyword insertion when bidding on misspellings will cause your ad copy to contain misspellings and look unprofessional.
