What eats so much memory on my website server?

My website nerdorgeek.com has at max 600MB of memory (not HDD space) and only has 60MB left. The website is made with wordpress, I have a lot of plugins, what do you think is eating all the ram?
Answer #1
u r running single website on server ?
if not possibly other sites eating up ur memory or burst ram
Answer #2
IF its a bandwith space its space abut visiting and 600mb is really low. So that space is reset every month.
If not please be a more specific and give us some screenie.
Answer #3
Are you running a Linux or similar server? Linux will use free RAM as a cache and only leave a little that is completely unused. This cached RAM is still available for use should the web server or other system services require it. Have a look through this website for more information:
http://www.linuxatemyram.com/
Answer #4
600mb is low!
You can try giving exclusive access to users on your website to reduce traffic
Answer #5
Mysql Server? there could be a number of things causing it go to your control panel have a look
Answer #6
jasonxman replied: I have a lot of plugins.
1. Trust me, this is exactly the problem, too much plugins can kill your site. Just use the plugins you need… not ALL the plugins your think are useful.
I suggest you install and activate WP-Super Cache and WP-Minify, google for instructions.
2.
http://gtmetrix.com/reports/nerdorgeek.com/0pbIBaCz
Do the suggestions served in that page.
3.
http://validator.w3.org/check?uri=http%3A%2F%2Fnerdorgeek.com%2F
Try to fix all the errors shown.
Answer #7
Welcome to Ubuntu!
System information as of Mon Oct 24 02:28:28 UTC 2011
System load: 0.02 Processes: 74
Usage of /: 13.0% of 9.84GB Users logged in: 1
Memory usage: 47% IP address for eth0:
Swap usage: 0%
total used free shared buffers cached
Mem: 646176 572052 74124 0 89440 186584
-/+ buffers/cache: 296028 350148
Swap: 0 0 0