(Some of these are offline because they are/were hosted on my personal computer which is currently on a moving truck)
Afk247 - http://afk247.com/ - an away message ranking site where people could vote on their favorite away messages submitted by users. This was back when AIM was my main mode of communication at school. Was going to make money with AdSense. Never really took off, but I did get an article in the school newspaper about it!
MadStatter - http://madstatter.com/ - Baseball stats site. I'm a huge baseball fan and love all those weird stats that go along with it. This site had a couple of (imho) cool interfaces to display interesting stats. Tried using AdSense but didn't make much.
SecureShirts - http://secureshirts.com/ - I wanted to learn how to screenprint my own t-shirts, so I bought all the equipment and learned how. I decided to print my own line of nerdy shirts and sell them online. I sold a few, but never got really big.
TweetShirts - http://tweetshirts.com/ - Twitter themed t-shirts. Made a tiny profit, but had a lot of leftover inventory when I decided to kill it.
Sideways Shirts - http://sidewaysshirts.com/ - In addition to my own nerdy shirts, I did custom screenprinting for events/groups/etc. I did it in my spare time, but became profitable and it was a lot of fun. This covered the cost of printing my inventory for SecureShirts and TweetShirts.
I had to deadpool all of the shirt printing businesses when we decided to move to CA after launching Notifo during YC. We left our townhouse in NC and relocated to a tiny apartment in SF which didn't have room for any of the equipment. I'm sad to let that go, but it was very time consuming and labor intensive. I'm glad for the learning experience though.
Flixpulse - http://flixpulse.com/ - This was the first Twitter Movie Review site that I know of. All of these new studies coming out about doing sentiment analysis in tweets all came along after Flixpulse had been out for a while. I did Bayesian analysis on a manually-trained corpus of movie-review tweets, and then it became pretty well self-learning after that. It was fun but eventually the old little computer that hosted it (900MHz gateway that was forever old) finally ran out of RAM to hold the Bayesian filter data. Oh well. Tried doing affiliate movie ticket sales through Fandango and affiliate movie poster sales, but nothing really came of it.
TheRentMap - http://therentmap.com/ - Apartment listings on a Google Map interface which led to affiliate apartment programs. Not quite dead yet, but it would take significant effort to get it to a point where it really makes any money.
There are a couple others on the verge of the deadpool, but some that I think might make fun side-projects for a while longer.
Mainly I do all these projects as learning exercises. Each one has something new to it that I had never done before, so after a while I have an arsenal of knowledge to throw at bigger, more complicated projects.
I think Notifo will be taking up most of my time for the near-future, and one I am desperately going to keep from the deadpool :)
Notifo is awesome! I have been using it for some toy projects like: http://github.com/himanshuc/macanator. Also, http://push.ly works great with notifo for twitter notifications. Overall, I am a satisfied user and think you will most definitely be away from the deadpool.
I loved Flixpulse and was disappointed that it didn't stay updated. Lately, Twitter searches have been doing the job for me though, example: watched "social network"
(Some of these are offline because they are/were hosted on my personal computer which is currently on a moving truck)
Afk247 - http://afk247.com/ - an away message ranking site where people could vote on their favorite away messages submitted by users. This was back when AIM was my main mode of communication at school. Was going to make money with AdSense. Never really took off, but I did get an article in the school newspaper about it!
MadStatter - http://madstatter.com/ - Baseball stats site. I'm a huge baseball fan and love all those weird stats that go along with it. This site had a couple of (imho) cool interfaces to display interesting stats. Tried using AdSense but didn't make much.
SecureShirts - http://secureshirts.com/ - I wanted to learn how to screenprint my own t-shirts, so I bought all the equipment and learned how. I decided to print my own line of nerdy shirts and sell them online. I sold a few, but never got really big.
TweetShirts - http://tweetshirts.com/ - Twitter themed t-shirts. Made a tiny profit, but had a lot of leftover inventory when I decided to kill it.
Sideways Shirts - http://sidewaysshirts.com/ - In addition to my own nerdy shirts, I did custom screenprinting for events/groups/etc. I did it in my spare time, but became profitable and it was a lot of fun. This covered the cost of printing my inventory for SecureShirts and TweetShirts.
I had to deadpool all of the shirt printing businesses when we decided to move to CA after launching Notifo during YC. We left our townhouse in NC and relocated to a tiny apartment in SF which didn't have room for any of the equipment. I'm sad to let that go, but it was very time consuming and labor intensive. I'm glad for the learning experience though.
Flixpulse - http://flixpulse.com/ - This was the first Twitter Movie Review site that I know of. All of these new studies coming out about doing sentiment analysis in tweets all came along after Flixpulse had been out for a while. I did Bayesian analysis on a manually-trained corpus of movie-review tweets, and then it became pretty well self-learning after that. It was fun but eventually the old little computer that hosted it (900MHz gateway that was forever old) finally ran out of RAM to hold the Bayesian filter data. Oh well. Tried doing affiliate movie ticket sales through Fandango and affiliate movie poster sales, but nothing really came of it.
TheRentMap - http://therentmap.com/ - Apartment listings on a Google Map interface which led to affiliate apartment programs. Not quite dead yet, but it would take significant effort to get it to a point where it really makes any money.
There are a couple others on the verge of the deadpool, but some that I think might make fun side-projects for a while longer.
Mainly I do all these projects as learning exercises. Each one has something new to it that I had never done before, so after a while I have an arsenal of knowledge to throw at bigger, more complicated projects.
I think Notifo will be taking up most of my time for the near-future, and one I am desperately going to keep from the deadpool :)