People should really check out QPSA (QuePasa.Com). I've been in this for about 8 months or so and have traded around a core position. The runs are very predictable.
I won't call this a float lockdown, but of the 13 million outstanding shares, the 9 million in the float are most likely locked down as it is very tightly held.
QPSA is essentially the Latin American version of Facebook and it is the most rapidly growing social networking website - currently adding between 1.2 million and 1.5 million new users per month. They just hit 20 million users and will most likely PR this as they always do with membership milestones.
Currently QPSA is the only publicly traded social networking company. If/when Facebook goes public, QPSA will surely take off, if it isn't bought out before then. That is why I keep a core position and play the trends around it.
If you are still interested at this point, I highly encourage you to read page 12 of this analysis where it provides per-member valuations upwards to $20/share.
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