Some ad networks let you start with just a few dollars a day, which is great if you're testing the waters or working with a low budget. Networks like PropellerAds, EvaDav, and Adsterra usually accept small daily budgets, even around $5. They’re easy to start with and have simple dashboard setups. Google Display Network also allows small spending, but it can sometimes need better targeting to avoid wasting money. It helps to focus on one campaign at a time and keep your targeting tight. That way, even with a small budget, you can collect useful data and slowly scale up. Have you come across other networks that are beginner-friendly when starting small?