Brief overview of the latest improvements

We have released the following improvements:

1. Results of a site-wide search can be filtered by object type.
   
2. Convenient search of existing ads upon campaign creation.
   
3. Advertisers can change ads of existing campaigns.
   
4. Advertisers can edit their targeting and filter ad units by quality (see Quality range parameter).
   
5. Our moderators classify publishers' sites by category and quality (normally within 24 hours of ad unit creation).