These are some of my favorite HN threads and, hopefully without touching on amoore's toes, I wanted to get one rolling for May before it was too late.
Ask HN: What did you build or launch in May?
1–10 of 27 posts
Re: Ask HN: What did you build or launch in May?
#2https://my.infocaptor.com was launched in May
Re: Ask HN: What did you build or launch in May?
#3Re: Ask HN: What did you build or launch in May?
#4[deleted]
Re: Ask HN: What did you build or launch in May?
#5Re: Ask HN: What did you build or launch in May?
#6http://goingclubing.com re-code it in rails.
Re: Ask HN: What did you build or launch in May?
#7Public beta launch for http://www.mcqmania.com/
(It's currently for a niche market in Nepal.)
Re: Ask HN: What did you build or launch in May?
#8Public beta of http://holaio.com
Re: Ask HN: What did you build or launch in May?
#9[deleted]
Re: Ask HN: What did you build or launch in May?
#10http://www.readrboard.com
Fills a place between the Like Button and article comments. ReadrBoard is a bookmarklet that makes it easy to "react" to quotes, images, and video on a page. Run the bookmarklet on any website, select what interests you, and then click a button or add a tag. User profiles are auto-generated, showing a stream of what you've rated all across the web, capturing how readers feel about the pieces of content that grab them most. The goal is to help readers & publishers identify what online content people care about, and why.