The GBIF 2016 Ebbe Nielsen Challenge has received 15 submissions. You can view them here: Unlike last year where the topic was completely open, for the second challenge we've narrowed the focus to "Analysing and addressing gaps and biases in primary biodiversity data". As with last year, judging is limited to the jury (of which I'm a member), however anyone interested in biodiversity informatics can browse the submissions. Although you can't leave comments directly on the submissions within the GBIF Challenge pages, each submission also appears on the portfolio page of the person/organisation that created the entry, so you can leave comments there (follow the link at the bottom of the page for each submission to see it on the portfolio page).