First and foremost your site must have "relevant" sections that will attract traffic that converts for them. For example do you have a section on food that will attract visitors who will click on an ad of a restaurant? Better still, in case you don't have one, create a section where you review some of the best restaurants in the city, then optimize those pages and drive traffic to them. Then approach restaurants for offering ad space to them after testing some ads on those pages and recording the results.
Going direct to an advertiser is always better than going through a broker, especially if your traffic is local. Besides I am not sure whether 1500 visitors per day will meet their minimum requirements. If ads are proven to convert any advertiser would be interested in paying for ads on your site.Does anyone have any experience or insight? Should I sign up to a platform like blogads to help manage this or is it better to manage ads directly? Is sidebar advertising dead? Any advice would be appreciated! Thanks!