Yes, what Joe said. If I'm looking for a specific part I know the manufacturer, so I don't see the problem going to their site to get the datasheet. If a I don't know the manufacturer, then a Google search will find that.
At best you will only have the same information as the manufacturer. I just don't see a point to a middleman, and some drawbacks. What if your site accepts advertising, for example? How can I trust the information about one vendor when it came to me paid for by a competitor?
I suppose there might be some advantage if you collect a lot of stuff and make it easily searchable, but then only if you ultimately link to the live copy at the manufacturer's site with a URL I can clearly see is from the manufacturer.
This is what distributors do, and I do use those links regularly. I really dislike it when distributors keep their own copies, even worse if they edit the datasheet. Jameco comes to mind. They add that annoying Jameco page to the start of every datasheet, so I don't go there when looking up stuff and wouldn't trust it if I ran accross it. It also pisses me off they try to get in my face every last place they can. Better distributors like Mouser and DigiKey understand the way to get customers is to supply good information, not constantly get in your face about who to buy from. I buy from Mouser and DigiKey a lot more than from Jameco.
