The popular photography network, Flickr, has reached 6 billion photos.

Flickr was established in 2004, before being sold to web giant Yahoo! a year later.

Over the past five years, uploads to the site have increased 20% year on year, with the 6 billionth photo uploaded on Monday by user eon60.

The photograph was taken on a Panasonic Lumix LX3, a premium compact. The picture shows a Montbretia flower which was taken on the same day as it was uploaded. The LX3 was a popular compact camera, which saw an update in the form of the LX5 last year.

Since featuring the photo in the Flickr blog, it has been viewed over 10,000 times and attracted more than 150 comments.

EXIF data

Flickr allows users to give uploaded photos titles, tags, geotags. EXIF data, which shows information about the camera, including camera brand, lens and any post-processing, is automatically uploaded, while other users can favourite or comment on images.

A pro Flickr account gives uses unlimited uploads and storage, unlimited sets and collections and the ability to see stats about your account.

The most popular camera on Flickr is not a dedicated camera, but the Apple iPhone 4, with the 3-year-old Nikon D90 coming in second. The pro-level Canon EOS 5D Mark II makes it into third place.

At 2:56pm on 6 August, 1991, Tim Berners-Lee launched the very first website, setting in motion a chain of events that would ultimately end with Nyan Cat. Here are 20 things we'd never have seen if it weren't for his invention.

1. Extreme Japanese pornography

Rule 34 states that if you can imagine it, somebody's made pornography about it - and that means most of us have seen things we'd rather we hadn't.

2. Web celebs

Tron Guy, Star Wars Kid, Afro Ninja, Leave Britney Alone, Angry German Kid, Numa Numa... each one immortalised for eternity, or at least until Google shuts down YouTube.

3. Tea bagging

We genuinely didn't know what this was until we played multiplayer online games.

4. Conspiracy nuts

Like an online dating service for crazy people, the web has enabled birthers, truthers and people who think Prince Philip is an evil alien lizard to find one another.

5. Lots of cats

Whether they're Nyan Cat, LOLcats, Keyboard Cat, Ceiling Cat [language may offend] or just endless pictures of cute kittens, it's clear that cats are the web's favourite creatures.

6. Dancing Matt

A man called Matt dancing badly around the world is just the kind of quirky thing the web was invented for.

7. Funny Amazon reviews

The song Hot Shot City is particularly good.

8. Ok Go

Have you ever bought an Ok Go record? Can you even hum one of their songs? Us neither. But everyone online has seen at least one of their videos.

9. Beedogs

Beedogs!

10. Hacktivism

Hacktivism is a broad church that encompasses satirists, coders, Wikileaks and groups such as Anonymous and Lulzsec, and we're only beginning to see what it's capable of.

11. Fakes

Fake websites, fake images, fake products, fake news reports, even fake deaths of fake people: the web is a dangerous place for the gullible or quick to click.

12. Memes

From All Your Base to Emo Dad [language may offend], you never know what the web will decide to find funny.

13. The Flying Spaghetti Monster

Originally created in response to humourless Creationist school boards, the FSMhas unfortunately since been adopted by many equally humourless atheists. God finds that funny.

14. Taiwanese animated news

1-Apple News takes world events and animates them poorly. The result is, of course, comedy gold, whether it's Tiger Woods' marital difficultiesor Gordon Brown's alleged bullying.

15. PostSecret

There are very few websites that can make us cry, but PostSecret's little postcards are often like punches to the solar plexus.

16. Unhappy combinations

Some things really don't go together. iPhones in blenders. Mentos in Diet Coke. Beauty pageant contestants and video cameras.

17. A shrimp running on a treadmill to the theme from the Benny Hill show

Still funny five years on.

18. Slash fiction

Adding a whole new meaning to the term "Harry Potter's magic wand". No, we're not linking to it.

19. The Onion

America's finest news source has been widely imitated, but never bettered.

20. The fundamental decency of humanity

Not many laughs in that one, we know, but despite lots of evidence to the contrary - most of it listed above - it's true. People on the web are brilliant and we love you all.