There are certain domain names and websites that get traffic during special seasons. This is one such domain name that we own JobsinSummer.com. I checked the Google Trends on this domain and found this interesting chart:
http://www.google.com/trends?q=jobs+in+summer
There are obviously many such examples, another I want to point out that is region specific, is the keyword World Cup. Most folks in the world refer to World Cup for Soccer or Football that occurs every 4 years, 2006 was in Germany, 2010 will be in South Africa and so on. You can see the peak in 2006 and would expect it to peak again in early 2010
http://www.google.com/trends?q=world+cup&ctab=0&geo=all&date=all&sort=0
But when you check the trend for India World Cup, the chart looks different, the larger peak occurs in 2007
http://www.google.com/trends?q=india+world+cup&ctab=0&geo=all&date=all&sort=0
It occured to me that cricket is huge in India and the cricket world cup occured in 2007 and also occurs every 4 years.
Just a thought to chew on when you purchase domain names.
Differentiate or Die 