Internet Marketing

Happy pi Day! But What About e?

Today is pi Day, in case you didn’t know. Geeks like us assigned 3/14 as ‘pi day’ because, well, it’s 3.14 and that’s funny. Chuckle chuckle snort.

pi Day is Great. But Why Not e Day?

But I have to stick up for a less known but just as important constant: e.
E is 2.71828 (with lots more numbers after that).
It’s crucial for financial calculations around compound interest, probability, asymptotics and a whole range of other mathematical mind-benders that give me a headache.
Google stated their intent to raise $2,718,281,828 when they filed for their IPO. How geeky is that? Matt, did you have anything to do with the choice of target amount?
We also use e in a lot of Portent’s own tools: Our keyword research tools as well as our keyword quality measurement calculator, to name two.
So let’s give pi a rest. Next year, 2/7 is e Constant Day!

CEO & Founder

Ian Lurie is CEO and founder of Portent and the EVP of Marketing Services at Clearlink. He's been a digital marketer since the days of AOL and Compuserve (25 years, if you're counting). He's recorded training for, writes regularly for the Portent Blog and has been published on AllThingsD, Smashing Magazine, and TechCrunch. Ian speaks at conferences around the world, including SearchLove, MozCon, Seattle Interactive Conference and ad:Tech. He has published has published several books about business and marketing: One Trick Ponies Get Shot, available on Kindle, The Web Marketing All-In-One Desk Reference for Dummies, and Conversation Marketing. Follow him on Twitter at portentint, and on LinkedIn at

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