Also, I also understand your concern about not wanting to get hacked — technically, cracked, but it seems like very few people make that distinction these days — or phished.

Does the blockchain email seem legit?  Is the log-in link the correct one for your wallet?  When you hover over it, does the link point to what the underlined text is?

Here's some more info on avoiding phishing and such:

http://www.bu.edu/infosec/howtos/how-to-detect-phishing/

I don't put the kind of trust in Google and Chrome that lifehacker does, but here's more info:

http://lifehacker.com/5873050/how-to-boost-your-phishing-scam-detection-skills