As of June 9th, 2010, the Allmusic database contains no less than 1.9 million albums, 17.6 million tracks, 1.6 total artists involved and 348 thousand composers. There are more than three hundred sixty thousand album reviews.
It took them 19 years of continuous work to gather all this information.
For curiosity, we can compare the current statistics of the database with the ones from May 21st and see how much the database has changed in the last 19 days:
So here you have it: almost 35 thousand albums were added in the period, nearly 2,000 per day (and that including weekends and eventual holidays). New albums reviews amounted to 1,725 or 91 per day.
Seems quite a lot of work, doesn’t?
Source: All music.