Do know PPC ads

Hello friends. I'm conducting a survey about Pay Per Click for my research. Please lend a minute or two of your time to answer the following questions. I'd appreciate any help I can get.

How long have you been using Pay Per Click Affiliate Programs

1. Less than 3 months

2. Less than a year

3. 1-2 years

4. More than 2 years

Where do you think is the most effective placement of an ad?

1. Top

2. Bottom

3. Right

4. Left

What is your preferred ad format:

1. Graphic Ads

2. Text Ads

Preferred ad sizes:

1. Leaderboard (728 x 90)

2. Banner (468 x 60)

3. Half Banner (234x60)

4. Button (125x125)

5. Other (please specify)

Preferred ad services:

1. Google Adsense

2. Yahoo Publishing Network

3. Microsoft Adcenter

4. Adbrite

5. ClickSor

6. Bidvertiser

7. AllFeeds

8. Others (please specify)

Do your visitors prefer a simple or a complicated layout?

1. Simple

2. Complicated

Do your visitors find the advertisements annoying?

1. Yes

2. No

Is Paypal safe to use to store your earnings?

1. Yes

2. No

Are you satisfied with your earnings?

1. Yes

2. No

then comment and suggestion me.