If I recall correctly, I had around a handful of text heavy blogs, did occasional gallery and freesite submissions (stopped that entirely a few months later) plus I had a bunch of early "learning projects" from my first months - all of it spread out across around eight domains or so.
Around 90% of my income was coming from my blogs - and since I had been a poor student for quite a few years before that

, I went full time when my income was still well below what you would get for even a low paid regular half time job here - around $1500 a month or so.
That was back around November 2005. Now I work a lot less and earn a lot more

.