It's a project that allows anyone to receive real paper postcards from random places in the world. If you send a postcard from PostCrossing, you will receive one back from a random Postcrosser located somewhere across this giant world. A very fun social media network with great physical attribute!
KnowEm Members on Post Crossing are commonly tagged with:
Post Crossing Users
760 Users have profiles here
Social Media Relevance Rankings
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Social Media Relevance Rankings describe how each site is performing relative to the roughly 600 social media networks KnowEm is currently tracking. A site with a score of 1 is in the lowest percentile for that metric, while a site with a score of 100 is in the highest.
For example, if the site has an Alexa relevance ranking of 10, that means it is ranked lower than 90% of the other social media networks. A site with a relevance rank of 90 is scoring higher than 90% of the others.
Metrics provided in part by:
Similar Social Communities
