StumbleUpon Etiquette Guide and Best Practices
Techipedia: Tamar Weinberg
JANUARY 26, 2010
Relationship opportunities on StumbleUpon are endless, especially since it’s a social bookmarking service based on interests. So maybe some SU self-promoters consider someone subscribing to them on StumbleUpon similar to being subscribed to via RSS, email, etc. I think you’re right. Share a LOT less. Good point.
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