Well, Firstly, I am sorry for my late response. Secondly, I hope you received the $50 Google Adwords link I sent you via email. About #2: There is a fact here

Well, Firstly, I am sorry for my late response. Secondly, I hope you received the $50 Google Adwords link I sent you via email. About #2: There is a fact here that you realize - I guess, that users will visit your website from Google paid adveritising. They chose your website - so you should not disappoint them. Also you should choose the keywords carefully, and make sure that who search for these keywords is searching for your website! You can make a benchmark for 2 campaigns, to see which keywords work better, if you are confused about the best keywords to use. Also about optimizing the homepage... Users are more likely to have an idea about your website, even before they visit it - simply because they visited your website based on the keywords. Whatever, you should make the landing page ready to use for the users! I hope I am not confusing you, so I will give you an example. If users are searching for a service like uploading and sharing photos, you should make the landing page with a demo video to show users why they should use your service, and upload box to use your photo uploading service. [this is an example] Also give them a clue why your service is better than other services, like: unlimited storage, easy sharing, and all the benifits. Talking about benifits... you should not talk about the features of your website! You should mention the benifits. Sorry for making it long, but I did not have time to make it shorter, Good luck for you.