And we've ended the day on a well-deserved standing ovation for the Hack Day committee, who put this all together. That's it from us! Thanks for following our updates and stay tuned - you may see these hacks in future...

And the overall winner goes to... Stephan's Breaking News!

Most potential value goes to... Ribot!

Most entertaining hack goes to... Ballot Box!

Shortly announcing the hack winners, stay tuned....

So it's voting time now, but also beer time. Mmm beer.

This hack turns a standard (unstructured) tag and turns it into a 'super' tag! This passes the tag off to a system that enriches each of the tags to add more semantic data to our tag structure.

It even has an auto mode to identify what mood the chat message is coming through, even "sarcasm"

This is a hack to help add some emotion to the chat systems the devs use a lot.

Ken next. Can't wait

Ballot Box: A hack that creates fun, shareable polls in the run up to elections. Collecting audience data on the fly to measure and inform audience opinion. The polls would be simple yet powerful. This team has even done audience research - seems popular. Solid demo showing multiple data sets gathered from a single poll about Scottish independence.

Jon: As someone responsible for the CMS tools I'm all ears! Looks great!

Have Eye Got News For You: a Google Glass hack with that reading speed thing that let's you read word-by-word.

It imagines Guardian content with wearable tech. We paused in typing because we were told to pay attention...

Now we've got Have EYE Got News For You, not to be confused with the popular tellybox show because we changed the name, innit.

Short but sweet presentation just passed - essentially a bar which tells you where the article is and where the comments are.

Hot topic in the Guardian at the moment. Google's right to be forgotten. This hack provides a way to identify who might have asked for an article to be removed from google.co.uk.

Rascal: a reporting dashboard for running tests in Scala (a.k.a. journalist pretends to understand technical hack presentation).

Matt, our valiant MC is up now. He's unlocked our CMS to the world! Thankfully only on his machine. The hack allows anyone to log in to our CMS and then create their own Guardian article as a collection of their favourite content on the Guardian. This would be published to a distinct URL so can be shared with friends and on social media. These can then be embedded inside Guardian produced content for additional kudos.

Hack about reviews and how we could provide a way to write a review in the future. Everything from a snap judgement about whether the Guardian review reflects your opinion.

Now a hack aimed at finding different ways to connect with readers BTL, including a Reddit gold style reward system, easy correction suggester and new article proposer. Also something about emotions.

Swells is up again and he is demoing another great hack. It allows our editorial team to find tweets, youtube videos and Guardian videos from within our Composer CMS

Here's that preview tool Swells demo'ed earlier:

So, for example, the MH370 story. You can put in bits of content, not just from the Guardian, which is an easy way to create a timeline, inspired by the timelines we have now on the live blogs. Lovely!

Next up is Timeline prototype: a tool which helps our readers figure out what's happened in a big, long-running story.

Previewmatic: when editorial preview articles in production, they only ever look at the desktop site. Bad editorial. This hack cycles through various previews, so we can see what an article looks like on next gen, mobile and as part of a tag page.

Hack now to create an information element to a Guardian story to help provide background to a story. Yes, basically, I haven't done that justice at all. Sorry.

Story Box encourages people to share more stories that they find interesting but putting them in a box. Shares would be toted up and tracked, so readers can see their share history and unlock rewards for lots of sharing.

It will "automagically" reserve things for you and could save us lots of money for more hack days, hurrah! More pizza next year, yes?

Next up is Ribot. Sounds like a frog noise, actually stands for Reserved Instance Bot.

Next hack - iOS hack to add Guardian information to the dropdown menu to surface useful information, sport information and a daily quiz or poll.

Taking next gen web offline: We've had 'save for later' for years in apps but not for the web purists out there. This hack allows readers to access content when they have no network connection - ergo, we should be developing for "offline first"...

Lots of love for Patrick's hack there

Oliver and Seb from the Digital CMS team (Jon). Hack called Guardian angel. The idea is to offer a service that might help find content you might have missed and then show you a custom home page. Help you keep track of series that you often read but never make it to the Guardian's home page. This will put your most read sections of the Guardian where you can find them.

FYI one of our French friends seemed to enjoy Le Guardian:

So if you've mixed up things are wrong, you could easily find where the problem is. Pretty ace - and all from the shower! (except for the computer bits)

It's called C.P Bot (hat tip to the esteemed C.P Scott): a tool which helps you figure out where something is wrong, eg if the slugs don't match.

Jonathan reveals his hack was a shower idea!

Jonathan Hyde is up next so he's not liveblogging right this second, unless he has talents we're unaware of...

Soulmates conversations should lead to IRL meet ups. This hack makes that easier by bringing a map tool into the Soulmates app and suggesting potential locations between the two, er, mates. Among suggestions are rooftops bars, parties, exhibitions and, wait for it, Guardian Masterclasses!

Kaelig doing two hacks - greedy. And he's started with lots of buzz words. A reader profile page with a git-hub style overview of how active they been from leaving reviews to reading in specific sections. Could also recommend what content you've missed based on what you usually like to read. Maybe.

"LeGuardian" does what it says on the tin - puts a bit of French-flavour into the site.

A French-themed presentation next! Bonjour bonjour

Tag Miner: How good is our tagging? The aim of this hack is to allow journalists to find the tags they didn't know they needed (#unknownknowns) and to rule out the tags they'd never want to use.

Next up we've got an app demo to give our readers a news challenge every day. Find the answers or content to each of the questions and you score well depending on the speed you achieve.

The alerts can be personalised to specific sections of the site. So specific users get specific alerts. Lovely!

It's a pretty nifty tool which is getting a fair amount of whoops from our audience.

By the way, I (Jon), have been joined by the wonderful Elena Cresci and Fred McConnell who have been involved from our editorial team for the last two days.

Next up is team Breaking News, a different way to do breaking news on the new version of the Guardian site. The idea is to break news according to specific parts of the site, such as the US site or the Sports section.

The RecipEasy hack: this team have built a recipe finding tool with lots of features like search, technique cards and an in-built timer which follows your progress.

Lots of love for a great recipes hack

The second hack is all about languages. The team has used Google Translate to automatically change various articles into native languages. The team admits the translation isn't perfect, of course - but as the article is shared, the translations are improved using Google's own "improve" tool. They've also built in a log which tracks whether users actually use it – allowing us to predict which languages we should invest in.

First up is a hack about commenting... a way to highlight commentors who have a knowledge of the subject matter.

Teams discuss their options

Things are becoming tense as the time for demoing hacks approaches.

The room is quiet but full of concentration.

Things are quiet as we enter the second afternoon of Hack Day. Teams are beavering away, knowing demo time is only a couple of pizza-fuelled hours away. We're also gently pulsating in time with Kraftwerk's 22-minute epic, Autobahn, which seems to have become a Guardian tradition as some joker always puts it on the collaborative Spotify playlist we're listening to in here.

Status update: Ambient sound level is going down as screens start filling with code...

If you are interested, you can listen along to the tunes keeping the devs entertained on this spotify playlist:

Making our way through the various team's ideas. A couple more

We are kicking off another Guardian Hack Day event this morning.

During the next 29 hours the developers within the Guardian will spend time working on ideas. The aim is to have some form of prototype to present back at around 3pm tomorrow. This doesn't always go to plan as our Phil Wills will testify. Sometimes showing something that doesn't work is just as useful. Honest.

Some of you may be wondering what a hack day is about. It isn't about Guardian developers trying to hack into anything. The Wikipedia entry for a "hackathon" gives a good overview of what a hack day is all about.

We will be gathering tweets, photos and updates from as many of the team as possible over the next two days. We'll share as many as possible in this blog.

Lastly, this live blog will be written by non-journalists and offences to the Guardian style guide will likely abound.