Losing a professional-level career can also be a source of grief, anger and frustration. Starting a business is a death as well as a birth. You may feel as though you are getting a divorce after a twenty-year marriage. Here's why.

1. Sometimes career leaves you. The field wants "younger people." Or you have to change in ways that violate your sense of self.

2. Sometimes you leave a career that seems perfectly wonderful and fulfilling to those on outside. "The money's so good," your mother says, "and it's not as if you're scrubbing floors all day. Can't you just hang in there and pretend you like it?"

3. You feel disloyal. After all, you've gained a lot from this career. For rest of your life, you will view world through lens created by your training and experience. You will question assumptions, criticize, challenge, argue, prepare, organize, or negotiate.

HUH?

If you're new to business and trying to learn how to market on Internet, your first reaction will be complete bewilderment. Come to think of it, why am I suggesting this happens only to people who are new to business? I'm betting you'd find Fortune 500 CEO's who don't know their PPC from their CPA. Egads! And they say government employees talk in acronyms and jargon. They never came up with anything close to what you'll find on Internet marketing forums and bulletin boards.

Daunting as it is, you'll need to know this stuff eventually. So, pour yourself a strong cup of something and plow through these definitions:

ROI (Return on Investment) If your $1000 advertisement results in $1500 in sales, your ROI is $500.

Impression The number of times a banner or advertisement is served (displayed) on a web site. If 10 people visited web page containing banner, you would have 10 impressions. If one person viewed it 10 times, you would still have 10 impressions.

Hit This is a (poor) method of measuring web site traffic. A hit is registered each time a browser request is made from a web server. If you have a web page containing four graphics, each page display will count as five hits.

Page View This is a more effective way to measure web traffic. A Page View refers to each time a page is displayed. So, if you have a web page with four graphics, each time page is displayed counts as one page view but five hits.

Unique Visitors This is number of individuals who visit your site in a defined time. If 200 people visit your site this week, that is 200 unique visitors. If one person visits your site 200 times, that is one unique visitor.

Stickiness This refers to length of time that a visitor spends at your site over a given period of time, or sometimes to number of web pages that your visitors typically download.

CAC (Customer Acquisition Cost) This is cost of obtaining a new customer. You divide your total acquisition expenses by your total number of new customers. For example, if your $100 ezine ad produces 30 new customers, your CAC is $3.33.