My Webservers uptime:

root@terminus:~# uptime
15:07:49 up 2 days, 15:42, 1 user, load average: 0.00, 0.00, 0.00
(34 Days best)

And my PC's uptime:
\\KICHISERVER has been up for: 2 day(s), 21 hour(s), 55 minute(s), 20 second(s) (9 Days best)

And my Laptops uptime:
\\CRAPTOP has been up for: 2 day(s), 22 hour(s), 45 minute(s), 34 second(s) (21 Days best)

I try to never reboot any of my pc's.

My main server&workstation (serves HTTP/FTP/SSH/DNS for outside world (nothing serious, since my uplink is soo slooow) and DHCP/NAT/DNS/SMB/Terminal Services/Remote Administrator/Wireless Access Point for internal network; and it is my main workstation - I'm working on it 8h per day, sometimes even longer):
OS: Windows Server 2003 SP1
Current Uptime: 6 Days 6 Hours 39 Minutes
Max Uptime: 68 Days 20 Hours 30 Minutes

(in the past most reboots were caused by problems with electricity, since I do not want to spend anything on UPS, two reboots were caused by weird Avermedia Phone TV 98 TV tuner that was always doing strange things)

My laptop:
OS: Windows XP SP2
Current Uptime: 61 Days 23 Hours 55 Minutes
Max Uptime: 102 Days 17 Hours 43 Minutes
(this is 'fake' uptime, since my laptop is mostly hibernated (and when it isn't I'm working on my main workstation through Remote Administrator)

This PC: About 4 hours
Record: 2 months

Linode:

koptor@lunix:~$ uptime
16:37:40 up 143 days, 8:12, 1 user, load average: 0.64, 0.58, 0.50

\\CABLEACCESSTAPE has been up for: 0 day(s), 3 hour(s), 47 minute(s), 43 second(s)

my pc uptime is about 20 days , 5 hours , 20 minutes and 2 seconds...(at time of writing). i had to change the graphics card recently..

Nice 3 year bump there buddy!