Two External Monitors - HP laptop G71 343US

Good afternoon,
I have the aforementioned  hp laptop G71 343US.  I work from home and I use a single external monitor almost everyday connected via the VGA port.  I happen to come across another external monitor and was looking on amazon at some parts, and on youtube for videos, etc.
Bottom line question, can I hook up two different external monitors AND use my laptop screen?  can this be done in such a manner than the desktop is extended and not duplicated? 
I assumed that the VGA splitter i saw on amazon would create a duplicate display on both externals, but i saw videos proclaiming that a usb to VGA adapter could be used to create the desired effect.  further investigation revealed that this is a "displayport" to VGA adapter.... i don't even know if i have a 'displayport.'
anyway i'm a little confused and couldn't find a concrete answer to my question.  so i came here
thanks for your input!

Hi,
I've got a setup in front of me now using one of my old laptops (nearly 5 yrs old), 2 full HD monitors and one USB dock
The following image show my laptop screen (#1) has my Yahoo (Yahoo7 in my country) homepage, left screen (#2) is a Photoshop session and right screen (#3) has my normal desktop background which is my grandson.
In short: you can, I don't have HP device to test but using a Lenovo DisplayLink with 2 DVI ports from work.
Regards.  
BH
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