hi can anyone tell me the best optional third-party SDK's to use for advertising

Some could argue there is no "best" for all, but best for your type of app, and situation (traffic, content, and so on). iOS or Android? For iOS I would suggest Admob, or iAds - Android, not sure, heh. Best of luck, and let us know if you find something sweet. Cheers, David https://btmods.com/chat

where do I find these

You will have to test it rigorously and see what is best for your situation. Buzztouch supports many advertising SDKs out of the box. To see the current list, choose any app in your control panel, click on Prepare Project Download, choose either iOS or Android and start the downloading process. You will see 2) Include Optional SDK's click on that and you will see a list of Buzztouch partners. Currently, there are 19 of them. Choosing one or two of these will download their corresponding SDKs into your project. (You will later have to enable them in the project.) You are not bound by these 19, you can easily incorporate any SDK that is available online, but this 19 are a bit easier to manage. Choosing the SDK in this way is not even a half of the battle. You will also have to change the source code and each SDK will have its own set of rules that you must obey unconditionally. Many Buzztouch members struggle at this point and you will see dozens of topics in these forums about this or that SDK and how to use them. To find them easily, go to Google and search for site:www.buzztouch.com/forum <SDK name>. It goes without saying that you have to go to each site and become a member first. Each advertising site will have their own back panel through which you will be able to adjust the kind of ads that you are receiving, frequency and so on. If the advertising network is forcing too many ads in your app, you will be able to tone them down, by inserting a couple of lines of code into your buzztouch project. (That is where open source nature of Buzztouch comes in handy!) You insert the call to the SDK wherever you want. Some people just insert it into the code for the first plugin that appears in the app and they are done. When the user opens the app, they are guaranteed to see the ad (provided there is Internet connection or that the app is not taken entirely offline). You can insert ads into other parts of the app too, and you are not limited to one particular ads network. If you want to be flexible, you can even choose to download several SDks, even if you know that you will not use all of them right away. Later, you can test them by turning one on and the others off, and see which network gives you the best amount of money per click. NOTE. There are several ways to test ads but that is out of the scope of this post. Testing the ads is a never ending struggle. You keep thinking which ads network would yield the best profit and you keep turning ads off and on, comparing against the countries, the downloads, the type of hardware that the your app is running on and so on. There are two most important factors: -- the number of downloads and -- frequency of using the app. In the ideal case, both should be high, i.e. there would be many downloads and each user would return to the app frequently. Such apps are called "killer apps" and are the Holy Grail of app development. (Think Facebook and Instagram apps.) Apart from testing the ads and the individual apps, you constantly have to work to increase the numbers of downloads and the frequency of return and that is what will shape your app's success.

I turned this into a blog post here: http://duskosavic.com/blog/programming/make-money-with-your-buzztouch-app-through-in-app-advertising/

You will also want to visit the How To's section and find many PDF manuals about inserting SDK into your app: https://www.buzztouch.com/resources/