I saw the earlier thread on this issue, and I can confirm that there haven't been any First Land plots available any time I've checked.
If 100 plots were made available all at once last week, they were gone within hours - because I've been checking since Tuesday and haven't seen a single plot. If they were scattered through the week, they were gone by the evening, when many users log in (what with that whole "18+" thing and typical work schedules.)
If you can confirm that there are plots available now, I'll check again tonight and see if there are any left. But based on the number of comments from people looking, it's clear supply is way below demand - and all new users are told (in notecards, welcome messages, FAQs, Mentors, etc.) not to buy open-market land because they'll lose First Land privelages.