Postage Meter Website - ~$55 a month

Postage-Meter.org (all other major TLDs taken)
Regged at GoDaddy

Site is powered by Wordpress, promoting various Postage Meter offers. I have not touched it in over a month, but traffic is still coming daily:
Traffic is low - ~5 visitors a day. 50% from Search (Almost all of this is from Google).

It is a very targeted market with targeted traffic, that is why the small amount of visitors, but as you can see below, the traffic converts. I am sure any one with more experience/time can get some better numbers out of both the traffic on income than I did (especially since I wrote a few articles and left it).

Yahoo says 2250 backlinks. 9 pages cached in Google.

Adsense Income:
$5.84 so far in May
$1.78 for half of April (added Adsense in Mid April)
$7.62 per month

Affiliate Income:
1 Pitney Bowes Conversion - $72
3 Stamps.com - 2 for $14.25, 1 for $50 - $78.50
$150.50 in 3 months - $50 a month

BIN - $500