Safari Extensions vs. Bookmarklets?

[reubs]

I'm not a tech guy who knows how these things work, so forgive this question if it's really obvious.

Many of the extensions I've seen (Share to Facebook, Instasafari, etc) already have existing bookmarklets. What's the difference between a bookmarklet and an extension? It seems like the bookmarklet would be better resource-wise because it's only used when it's needed whereas an extension (I guess?) runs with the browser itself.

Am I way off on that?

 

[rorschach]

Most of the extensions right NOW are basically glorified bookmarklets, to be sure.

However, extensions *can* do a lot more so we're just going to have to wait until some bigger and better ones are written ... those take a little more time. Wait for some of the bigger Greasemonkey scripts and Chrome extensions to be ported.

 

[reubs]

Gotcha. It just seems like every extension that's out so far is a toolbar button, and that could get crowded quickly whereas a bookmarklet just takes up room in a folder on the bookmark bar.

Thanks for the response!