under which tier does slideshare, videos and pdf submissions comes under.
Can someone please tell me what flavors (web2.0, blog commenting, social bookmarking etc..)comes under which category (which tier).
I am pretty sure I know blog commenting comes under tier 3. I don't know what comes under tier one and tier2. Please mention.
Can someone please tell me what flavors (web2.0, blog commenting, social bookmarking etc..)comes under which category (which tier).
I am pretty sure I know blog commenting comes under tier 3. I don't know what comes under tier one and tier2. Please mention.

