The site has gotten so much better over the years, adding the ability to have shipping at checkout was a major hurdle. It has seemed like they've really been investing in development over the past 2-3 years. Everything was a bit stale and then really started to show signs of life. A lot of it's is like Wiki since it's user submitted and curated but man if it isn't slicker than other options. It also destroyed early sites like GEMM.<p>I've always been a big fan of their transparency and support as well, you can get downloads of the entire database, freely available, on a regular basis with no hassle. They know it's not about the data, but the community and experience.<p>Weird seeing them on HN, seems like 10 year old, moderately profitable companies aren't as common around here.