However, you might consider combining existing platforms:
* Social Media: Many social media platforms allow you to share links to your favorite websites and have a messaging feature for sending e-cards. You could create a group or use direct messaging to trade e-cards with friends.
* Bookmarking Sites: Sites like Pinterest, Pocket, and Delicious allow you to save links to your favorite websites and share them with others. You could then use a separate platform for e-cards.
* Forums/Communities: There are online communities where you can share your favorite websites, and some might even have features for sending e-cards or messages.
Here's a thought for a new website:
* "WebSwap": This website could have sections for users to share their favorite websites, categorized by interest. It could also have a built-in e-card feature, allowing users to trade cards with others who share similar interests.
Ultimately, the best option would depend on your preferences and the features you're looking for. You could even try creating your own website or app with this idea!