Need a recommended facebook plugin

Can someone recommend me a facebook plugin

I tried the most popular one on a few websites
(It was the one with most downloads)

For some reason, it just wouldn’t work – the error given wasn’t very helpful – it just said ‘something’ isn’t working or something like that at least

Just wanted some recommendations others have used

Basically, if the website is updated with content, then the facebook website should also be simultaneously be updated

Thanks

Omar