I have a netbook like that too. What I did was go to
Settings -> (
Show advanced settings ->)
Content Settings, and on the
Plugins submenu, make sure
Click to enable is set, then save.
This way, any flash that wants to load must be clicked on, saving resources. You can also add the site to a list of exceptions so that you'll never have to worry about clicking every time. Also, if you're worrying that Flash is taking up too much RAM, then click on
view background pages. This will give you Chrome's internal task manager, which also allows you to end both chrome processes and extensions. From here you can end the Flash extension, saving RAM quickly.
One of the great things about this tool is that if you're not using a page you can just end the process of it, and it'll free up the memory but still keep the tab open! (albeit content). This means you can suffer a mad case of tabitis with relatively little RAM usage.
Also; if you're on linux, consider increasing the living bejeezes out of your