1st
Numbers don’t tell us much without insight and interpretation, in fact, you’re going to see conflicting numbers of usage from many of the agencies and social networks themselves. The key is to look at trend movements, don’t focus on the specific numbers but the changes to them over time. I put more weight on active unique users in the last 30 days vs overall registered, in fact, the actual active conversion rate will often range from 10-40% of actual users sticking around and using the social network, so don’t be fooled by puffed numbers. No single metric is a good indicator, you have to evaluate the usage from multiple dimensions, so you also have to factor in what are users doing, time on site, interaction, and of course, did they end up buying, recommending products, or improving their lives.