Phishing ...

Phishing is the criminally frauduletnt process of attempting to acquire sensitive information such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication. Communications purporting to be from popular social web sites, auction sites, online payment processors or IT administrators are commonly used to lure the unsuspecting public. Phishing is typically carried out by e-mail or instant messaging, and it often directs users to enter details at a fake website whose look and feel are almost identical to the legitimate one.
(Source : Wikipedia) http://en.wikipedia.org/wiki/Phishing

What to look for in a phishing email (Source : PhishTank.com)
http://www.phishtank.com/what_is_phishing.php

1 -- Generic greeting. Phishing emails are usually sent in large batches. To save time, Internet criminals use generic names like "First Generic Bank Customer" so they don't have to type all recipients' names out and send emails one-by-one. If you don't see your name, be suspicious.

2 -- Forged link. Even if a link has a name you recognize somewhere in it, it doesn't mean it links to the real organization. Roll your mouse over the link and see if it matches what appears in the email. If there is a discrepency, don't click on the link. Also, websites where it is safe to enter personal information begin with "https" — the "s" stands for secure. If you don't see "https" do not proceed.

3 -- Requests personal information. The point of sending phishing email is to trick you into providing your personal information. If you receive an email requesting your personal information, it is probably a phishing attempt.

4 -- Sense of urgency. Internet criminals want you to provide your personal information now. They do this by making you think something has happened that requires you to act fast. The faster they get your information, the faster they can move on to another victim.