Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
crdoconnor
on Sept 24, 2015
|
parent
|
context
|
favorite
| on:
Give Google Contributor a try: Pay to remove ads
Advertising only has to work on a fraction of the population for it to have a positive ROI.
Penis pill emails have a well demonstrated ROI as well.
Consider applying for YC's Fall 2025 batch! Applications are open till Aug 4
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
Penis pill emails have a well demonstrated ROI as well.