Then, look at quantity of clicks from each IP address, click behavior and click timing. Run a "reverse IP address lookup" to see who is making those clicks.

Basically, you want to be able to gather as many details as possible for each and every click. Whether you will depend on tool your webhost is providing you, or you will install a software yourself, or you will contract it out, make sure you have capability of capturing IP address.

If IP address was not captured, or cookies were not generated, that's an indication of clicks being generated by automated scripts known as "hitbots."

3. Start tracking conversion ratio. You can choose to track conversions either by using your own conversion tracking system, or by using a third-party conversion tracking tool. There are plenty of low-cost conversion tracking solutions.

In some cases, services offering to track your clicks will have a sales conversion option available for you. That's a service you definitely want to get if you don't want to deal with it yourself.

But, if your sales ratio is very low or even zero, your chances are very high that you're being bullied by someone. It could as well be low demand of your product or a high competition, but if you're getting high amount of traffic from your PPC campaign and low to zero sales, chances are very high that you could be a victim of click-fraud.

So, what do you do if you suspect that you're receiving fraudulent clicks on your PPC campaign?

4. Be meticulous - very thorough. Make sure you have data that points to questionable traffic. You have to have evidence of suspicious clicks. Ensure that you have a legitimate case even if you have to double check your records. The PPC provider will ask you for facts and not an opinion.

5. Carefully document your traffic analysis during your PPC campaign. Document anything related to campaign - handwritten notes, email exchanges, scribbles, reports, screen shots, etc.

6. Be sure to record every one of clicks, whether they're from your server logs or from a third party processor that you might be contracting for this purpose.

7. Document all relevant competitor positioning. Ever since Google changed its policy on PPC ads, there have been various reports on competitors of a same product manipulating Google's new system.

It's people with more technical knowledge manipulating system for their own good while killing campaigns of people with no technical knowledge. They're not breaking Google's rules, but they know when to pause their campaign (knowingly) and when to reactivate it again.

8. On other note, you might want to contact your competitors to see if they're experiencing click fraud. Your PPC campaign might not be only one experiencing these fake clicks. Two victims' cases presented to PPC provider will make a stronger case.

9. When feeling highly confident that you have a strong case and clear facts that you've been a victim of click fraud, contact your PPC account representative and submit your data with a request for refund. Their investigations can, and do take time.

10. Meantime, continue to monitor your click activity and record any additional data.

It's unfortunate that we have to be so much involved to protect ourselves. We pay for advertising so we can free up our time and let someone else do it. But with seriousness of PPC "click spam" nowadays ........ you snooze - you lose.

If PPC providers don't solve this problem, perhaps there are other ways of bringing highly targeted traffic with less stress.

b) Arouse people's interest and ignite their desire to read more;

Give them a hint or a taste of what is to come. It makes person hungry for more and keeps them involved. The benefit, offer, or news that you mention in your subject line, will be major reason for your recipient to continue reading. It's magical lure that compels person to read on.

c) Sell them on rest of message;

Always think of recipients' benefits when writing subject line. When you're thinking from your recipients' point of view, you're communicating on their level about something that they're interested about. WIIFM (what's in it for me). Sell them rest of your e-mail by telling them with your subject line - what's in it for them and not what's in it for you.

Here are some examples of subject lines that will help you accomplish above.

1) The unfinished sentence;

"Here's secret source of ..." , "A sneaky marketing trick that will ..." , "A shocking truth about ..." , "Increase your commission with this new ..." , "Here's a great example of ..." But, don't get lazy and use 3 dots on a statement. "Only 14 hours left ..." It won't create same effect as "Only 14 hours left for ..."

2) The question;

"How much is your hour worth?" , "Are you frustrated with your paycheck?" , "John, are you making this mistake too?" , "Did you get recording from last week?"

3) The "Ah, what?" statement;

"The funeral is Friday." – Mat Gill. "Thank Donald Trump for this." – Kevin Wilke

4) The "how-to" statement;

"How to increase your profits." , "How to have best sex ever." , "How to write best articles." , "How to triple your signups."

5) The direct statement;

"The shocking truth about making millions of dollars." , "Finally, best marketing option."

6) The Indirect statement;

"The best ways for getting signups are waiting for you inside." , "A very special opportunity is waiting for you inside."

7) The guarantee statement;

Be careful with this one. Don't say it unless you have 100% proof. Or, FTC will knock on your door very soon. "Double your money in 30 days or I'll pay you 120% cash back!"

8) Scare-them-half-to-death statement;

"Your online identity is at stake." , "They will steal your credit card right in front of your eyes." , “A teenager can break into your computer nowadays."

9) The pure benefit statement;

"7 easy steps to a professional looking website." , "10 ways to fight Click Fraud." , "25 tips to help you qualify for your job."

10) The news;

"Google changed their policy." , "The best online survey." , "Judge sentences spammer to nine years in prison." , "A brand new free money video" – Frank Kern.

11) The invitation statement;

"You're invited to attend tonight's free phone seminar."

12) The emotional statement;

"I cried when I wrote this for you." , "I apologize for last week e-mail." , "I'm sorry for late notice." – Frank Kern.

13) Use your imagination. Create a subject line that will spark interest, create curiosity, get attention, and most of all, deliver a benefit that your recipients cannot refuse.