I think online advertising is more effective these days. Most people spend a lot of time on their phones and computers, so online ads can reach a huge audience very quickly. Also, it's easy to target certain groups, like people of a certain age or with specific interests. Plus, online ads are usually cheaper and you can see how many people clicked on them, which is helpful for companies.

I think offline advertising can still be very effective. For example, when people see big billboards or posters outside, they remember them. TV and radio ads are good for reaching people who don't use the internet much. Some people also trust traditional ads more, and creative ads on buses or flyers can really stick in your mind.

I think it depends on what you're advertising and who you want to reach. Younger people usually notice online ads more, but older people might pay more attention to TV or newspaper ads. For local businesses, offline ads like posters in the community can work better. Sometimes, using both online and offline ads together is the best way to reach everyone.