The only revenue model I for this is ads (like AI Stupid Level[0]). Or as a loss leader to get eyeballs to your service (like Margin Lab[1]).
EDIT: I forgot (and am shocked) that HN still doesn't seem to support Markdown-style links.
EDIT: I forgot (and am shocked) that HN still doesn't seem to support Markdown-style links.
Its similar to other data services I see around my F500 company.