When it comes to choosing ad networks for publishers and bloggers, several options are available. The best ad networks often depend on factors such as your website's niche, traffic volume, target audience, and revenue goals. Here are some popular ad networks that are widely regarded as reliable and effective:

Google AdSense: Google AdSense is one of the most popular ad networks for bloggers and publishers. It offers a wide range of ad formats and provides relevant ads based on your website's content and audience. AdSense is easy to set up and offers competitive payouts.

7 Search PPC: The platform offered advertisers the opportunity to bid on keywords and display their ads in the search results and partner websites. Advertisers would pay a certain amount whenever a user clicked on their ad. 7Search provided a self-serve advertising platform where advertisers could create and manage their campaigns, set budgets, and monitor performance.

While 7Search PPC had a lower cost per click compared to other popular platforms like Google AdWords (now Google Ads), it had a smaller reach and lower traffic volume. It was often used by advertisers looking for budget-friendly options or niche markets.

Media.net: Media.net: Yahoo powers the contextual advertising network Media.net. and Bing. It focuses on delivering high-quality ads that match the content of your website. The several ad forms that Media.net offers include display advertisements, native ads, and video ads.

Ezoic: Ezoic is a platform that uses artificial intelligence to optimize ad placements and ad types to maximize revenue. It offers a user-friendly interface and provides data-driven insights to help you make informed decisions. Ezoic supports various ad networks and can integrate with Google AdSense.

PropellerAds: PropellerAds is an ad network that offers a wide range of ad formats, including push notifications, pop-unders, native ads, and more. It has a global reach and provides competitive payouts to publishers.

Amazon Associates: If your blog focuses on product reviews or recommendations, the Amazon Associates program can be a good option. You may use it to promote Amazon goods on your website and earn commissions. Amazon offers a wide range of ad formats and provides comprehensive reporting and tracking tools.

Sovrn //Commerce (formerly VigLink): Sovrn //Commerce is an affiliate marketing platform that helps publishers monetize their content by automatically turning product links into affiliate links. It has a large network of advertisers and offers competitive commission rates.

AdThrive: AdThrive is a premium ad management service that focuses on optimizing ads to maximize revenue for publishers. It offers a personalized approach, dedicated support, and access to high-quality advertisers. AdThrive has specific requirements for traffic and audience size, so it may not be suitable for smaller blogs.

Remember that it's important to thoroughly research and consider the terms, policies, and requirements of each ad network before making a decision. Additionally, you can experiment with different ad networks to find the best fit for your specific blog or website.