Back to Cochrane Crowd homepage

Join the MedLit Blitz

Working together to create health evidence & transform biomedical discovery

Got a burning passion for health? Ready to make a difference? We’ve got you covered.

Join us, our partner Mark2Cure and our collective global volunteer network for an online MedLit Blitz, May 9th-12th.
Together we will create health evidence and transform biomedical discovery. And we’d love you to be with us.

I’m new to Cochrane Crowd. What is it all about?

Your best bet is to watch our 2-minute video introduction.

Why a MedLit Blitz?

Cochrane Crowd has run two successful citation screening challenges, and we’re upping the ante by running a bigger event, the MedLit Blitz, with our wonderful partner, Mark2Cure. And it just so happens to coincide with the anniversary of both platforms and with Citizen Science Day 2017. Get ready to celebrate!

What exactly is happening for the MedLit Blitz?

We’re running 2 x 24-hour online screening challenges.


The Cochrane Crowd challenge begins on Tuesday 9th May at 10am GMT + 1 (UK time zone) and finishes at 10am on Wednesday 10th May.


The Mark2Cure challenge begins on Thursday 11th May at 7pm GMT + 1 (UK time zone) and finishes at 7pm on Friday 12th May.

How much time do I have to commit?

Of course, we’d love you to do both challenges in their entirety! Just kidding. Any contribution is welcomed, whether it be a few five-minute grabs or a more focused effort. You can choose to contribute to one challenge or to both.

How do I sign up for the MedLit Blitz?

The process is very simple. You just have to sign up to the platform(s) you’ll be contributing to. Once you are signed up, we will email you with a reminder or two about the Blitz.


Sign up to Cochrane Crowd.


Sign up to Mark2Cure.

If I join in, what will I be doing?

Your mission in Cochrane Crowd is to identify studies that provide the best possible evidence of the effectiveness of a health treatment. Once identified by the Crowd the studies go into a central register where health researchers and practitioners can access them. The more studies identified by the Crowd, the more high-quality evidence is available to help health practitioners treat their clients.
Your mission in Mark2Cure is to identify how genes, diseases, and drugs are conceptually related, based on biomedical text. Mark2Cure works by teaching citizen scientists to precisely identify concepts and concept relationships in biomedical text. Once these tasks are completed, statistical algorithms take the data provided by the volunteers and use it to provide scientists with new tools for finding the information that they require.

Will there be prizes?

We’re glad you asked! Prizes will go to the top three MedLit Blitz contributors. The winners will need to have taken part in both challenges. What are the prizes, you ask? You’ll have to wait and see!
As for the details: your contribution will be scored according to the number of citations screened in Cochrane Crowd plus the number of relationship annotations submitted in Mark2Cure.

I’d like to know more about Cochrane Crowd, Mark2Cure and the MedLit Blitz.

Brilliant! We’re running a webinar on Monday 8th May to talk more about all of the above. Everyone is welcome, whether you’re already contributing to one or both platforms, or are a complete newcomer.


Register for the webinar.

What if I sign up and then can’t join the challenges?

That is absolutely fine. You don’t have to notify us.

What if I make mistakes during the challenges?

Everyone should go at their own pace. The odd mistake will be made and we’re ready for that.

Will you be on Twitter?

We’ll be active on Twitter throughout the MedLit Blitz so please follow @cochrane_crowd and @Mark2Cure and use #MedLitBlitz to connect.

Sounds fun, can I tell all my friends about it and get them to join in?

Yes please! We want as many people as possible to join us for the MedLit Blitz. You could share this blog on social media (share buttons bottom of blog page) or include information about the MedLit Blitz in your organisation’s newsletter or website.

How can I find out more?

You can email Emily and Anna from Cochrane Crowd at and Ginger from Mark2Cure at


Back to Cochrane Crowd homepage