Help web publishers visualize concepts.
A repository and a service. The repository is a constantly expanding visual Wikipedia, where user upload their images (photos, infographics, videos, etc.) that explain or demonstrate concepts visually. Website publishers can use the service. All they have to do is include a simple code on their site, and every word that can be visually enhanced gets linked to the right visual aid. The user just has to hover over the word to see the visual.
To see all these beautiful buildings in one place and get inspired.
A website where fans of this style of buildings can upload their photos of the ones they visited. All should be cataloged by location and other details so they can be searched for or browsed.
Case studies can help you learn important concepts.
Regularly publish verified case studies in many areas of marketing, branding, software development, etc.
You have a friend going through a bad period or experience (health, emotional, financial, etc.) How can you help them?
A website, app or even a book, with helping guides for many situations you might find yourself in with your friends and family.
You read a lot of rumors and made up stories about celebrities. It would be interesting for a change, to get real life stories from people who actually had an experience with a celebrity.
A website that allows (after an editor approves it) anyone using their actual identity publish their experience with a celebrity.