The Open Graph settings for your articles in NeetoKb, if specified will make your article URLs become a rich object in the social graph.
In simpler terms as far as UI goes, if you post a link to your NeetoKb article URL with the correct Open Graph settings specified in them on Twitter, Facebook, LinkedIn, or other social media websites, the link would not be a simple HTML anchor tag. Instead it will be a clickable object following the style of the website it is showing up on, along with an identifiable title, description, and image.
Additionally, it makes the link to your article have the same schema as other top-level resources on the social media website you're posting it on, making it better at being individually parseable by indexing logic. For example, if you add a NeetoKb article with Open Graph SEO setting specified on Facebook, it has the same indexing-related properties as a Facebook post or Facebook Photo.
More about Open Graph Protocol can be read here.
Open Graph settings offered by NeetoKB:
Open Graph Title: The title of your article as it should appear within the clickable link on places where it is posted.
Open Graph Description: The description of your article should appear alongside the title.
Open Graph Image: The image that will represent your article.