I did this last week. It was my first time using google adwords, and I learnt a couple things. Your ads: A ton of people will sign up for dropbox but not inst

I did this last week. It was my first time using google adwords, and I learnt a couple things. Your ads: A ton of people will sign up for dropbox but not install the app, gaining you no benefit. This is probably people looking for cloud storage without the computer rights to install apps I'm guessing. My suggestion is to write in the ad copy itself that you have to download an app. When I did this I got less clicks and a higher conversion rate. Your bids: keep your bid low. My first day, I kept bumping my bid and my daily budget, and ended up spending $50 of my credit and only getting a few completed referrals. I was spending about $.80 CPC. I reduced my budget to $20/day maxand reset the CPC bid to "auto" and adwords began bidding around $.08 max per click. It took longer, but I only spent about $10/day and got a similar number of hits. Even though when I browsed the adword campaign page it generally said it was not displaying any of my ads because my bid was low, I still accumulated ~80k views/day for around $10. Your keywords: I got decent results using things like "send large file free", "share large file free", etc. When I used keywords like "dropbox" I was usually outbid by someone else who had a higher CPC set up. In the end I now have a 10GB dropbox account. Aside from my wasting $50 the first day it cost me about $10/day for 3 days to accumulate enough referrals.