A couple of weeks ago, rumors were circulating that Facebook was getting very close to filing for its IPO. A rumor reportedly going around among Facebook employees suggested that Facebook’s S1 filing could come as soon as December.

According to a new report from the Wall Street Journal, who is citing “people familiar with the matter,” Facebook is looking at somewhere between April and June 2012 for its IPO, aiming to raise $10 billion and a $100 billion valuation.

The valuation wouldn’t be too far off of the current trends we’ve already seen. Valuation estimates as recent as September already had the company valued at about $80 billion. You can see the steady growth in reported valuations over the past few years in this nice graph shared by Jolie O’Dell at Venturebeat recently:

Some notable tweets on the subject:

Facebook’s primary means of income is under scrutiny in Europe. The European Commission is reportedly set to introduce an initiative in January, which would ban the kind of targeted advertising that Facebook ads are based on. It will be interesting to see how this affects the IPO.