There are various websites for reliable marketing and advertising news. To list a few:

1. Taken Not Stirred: Taken Not Stirred publishes a wide variety of content, from the latest trends and news, to the classic ad campaigns explaining what makes them so iconic and successful. They also have a guide that includes all marketing and advertising how-tos. They believe in originality and deliver only the best.

2. AdAge: AdAge is an amazing news website that covers all you need to know about the advertising industry. They deliver news round the clock. They also have a podcast and a newsletter you can subscribe to.

3. Campaign Asia: Providing insights and intelligence into the ideas, work and personalities shaping the region's marketing-communications industry is their motto. They have various region-specific websites like – Campaign India, Campaign Japan, Campaign Turkey, Campaign UK, Campaign US, etc.

4. The Drum: They work with the belief that marketing can change the world. Their websites has all the insights and news you want in the marketing industry. Apart from that, they are also a marketing agency that provides all content marketing solutions, video production, research, peer-to-peer learning networks, and supplier finder services.