When it comes to wasting time on the internet, it often doesn't get much better than YouTube. As the web's most popular video sharing website, YouTube often has a vast array of weird and wonderful YouTube channels to subscribe to.

So sit back, make sure your Flash player is up-to-date and enjoy some of the funniest and most entertaining collections of videos on the web.

MyDamnChannel

Calling all Photoshop users, if you've not seen the "You Suck At Photoshop" series from MyDamnChannel then you'll probably wet yourself when you do. The series of 20 videos follows the troubled Donnie as he teaches you how to not suck at Photoshop whilst his life gradually falls apart.

With lashings of dark humour and the occasional star (Flight of the Conchords actress Kristen Schaal features in the channel's comedy soap opera "Horrible People") it's always worth checking out the latest uploads.

Ashens

Stuart Ashen's regular video reviews have earned him a loyal following, with nearly 100,000 subscribers to his channel. The plucky Brit takes it upon himself to review the worst pieces of technology around including fake PSP-like "consoles", terrible iPhone clones and cheap toys no child would want.

Stuart's die-hard fanbase has grown to the point where his subscribers willingly spend their own money and send him crap bits of tech to review. The channel is updated fairly regularly, providing you with new bits of tat to gawp and laugh at.

Tokyocooney

For anyone with a remote interest in Japan, Japanese culture and the far-eastern way of living. The channel follows American comedian Kevin Cooney as he works, plays and attempts to survive in Tokyo.

Topics include how to get a haircut in Japan, the many flavours of Japanese ice cream and the day-to-day goings on of an American in the land of the rising sun. Each video is boosted by Kevin's naturally funny narrative, and more updates are due soon (thanks to overwhelming demand on his YouTube profile).

AdamBuxton

Virtual home to British comedian Adam Buxton (as the name suggests), the channel provides somewhat geeky comedy twists on a lot of popular themes. Examples include a mash-up of Steve Jobs' iPad keynote speech with Star Wars (I know) and clever voice-overs of TV shows and adverts.

There's a distinctly British twist on this one, but if you're a fan of good humour you'll probably lap it up anyway!

Cassetteboy

A master of cutting up video and audio only to arrange it for comedic effect, Cassetteboy sets about attacking the films, radio and TV shows we know and love. A lot of his material is based on British television, but the time and effort put in to each can be appreciated by anyone.

Some of his best work took months to complete (check out Cassetteboy vs. The Apprentice above) so updates can take a while, but they're always worth the wait.

Cyriak

Inspired by Dali? Mentally unstable? Incredibly talented? Well at least the latter is true about this freelance animator's YouTube channel. With his own brand of internet-insanity, Cyriak's animations often leave you with a sense of "how did he do that then?" as he takes the mundane, adds a repetitive electro soundtrack and turns up the wackiness to 11.

Dancing cows that turn into spiders? Is it art? Who cares, these things take months to make and minutes to appreciate. Some of the very best animations and CGI on YouTube, bar none.

TheRealGiantBomb

Many gamers out there will be familiar with Giant Bomb, video-games reviewers and general all-round funny guys. With weekly updates that include games reviews, features and blasts from the past this YouTube channel will suit anyone with even a relaxed interest in the world of gaming.

The team answer questions (in video format) and regularly upload play-through videos of upcoming releases, demos and other games. If you like games mixed up with humour, then Giant Bomb gets you.

BBC Comedy

The BBC Comedy YouTube channel is a regularly updated portal for the whole world to enjoy (unlike many of the BBC's other services, which are UK-specific) that features web-exclusive content that's bound to make you laugh.

With coverage of many comedy festivals, snippets from BBC programming and the latest and greatest stand-up acts from around the world there's something for everyone.

OkGo

The only band to appear on the list, these guys made internet history with the Here It Goes Again video which featured some very tightly choreographed treadmill work. Since then they seem to have spent as much time coming up with viral videos as they have writing music.

Even if you're not a fan of the music the videos will make you smile, and it's quite easy to appreciate the immense amount of time and effort goes into each new release.

NurdRage

If you're interested in science, how things work and even attempting your own home-based science experiments then this one's for you. The channel focuses on experimentation, on subjects such as how to make your own glow sticks (and how they work, of course) to plunging your hand into liquid nitrogen (wouldn't recommend it).

As well as genuinely fascinating science, there's information on where to get many of the chemicals used in the experiments so you can join in too if you're brave enough. Just don't do anything stupid.

Any awesome YouTube channels we've missed? How about other video sharing sites? Post your favourites in the comments below.