I already have a handful of shared hosting accounts, mostly with HG. But, I'm in the process of scaling up and my shared hosting accounts cannot handle the traffic that I'm currently getting. I believe it's crashing the servers or freezing them. (I check my sites periodically during the day and it's the server error page) and it only happens when I have 100's - 1000's of UV's on my sites at the same time.
So is there some higher quality hosting that someone can recommend that can handle high volumes of traffic?
Will VPS hosting be better even though it's still considered shared hosting, or do I need to go the dedicated server route?
I'll take any advice, thanks in advance.