I'm quite confused about which keywords to use because i'm not 100% sure which influence each keyword has on an ad, e.g. Click-through-rate VS Competition? Which influence is more important?
Please help
if you provide adwords with your site url, it will suggest a number of keywords which Google thinks are relevant for your site. Don't worry about competition at this stage, relevance is much more important.
Your weblogs will also tell you the keywords people use when they search for your site or products on google. In time, you should load these keywords into adwords too.
It sounds as if at this stage you just want something to show your manager so don't over-engineer it. Start small, get a feel for the system, look at the reports and expand when you feel more comfortable.
good luck.
In addition to the suggestions already made, I'd suggest taking a look at the info on the page linked-to below. It'll give you a good overview of how to set up an AdWords account for success, by first understanding - and then meeting - the needs & expectations of your potential customers.
Tips for success:
[adwords.google.com...]
The basic principles covered on that page are as follows:
1. Identify your advertising goals.
2. Organize your account for maximum effectiveness.
3. Choose relevant keywords and placements.
4. Create straightforward, targeted ads.
5. Optimize your website for conversions.
6. Track your account performance.
7. Test and modify your campaigns to get the results you want.
AWA
<edit> fixed typo </edit>
[edited by: AdWordsAdvisor at 9:54 pm (utc) on Jan. 10, 2008]