i had this horrible problem when i faced the data lost in my ipod just because of the option set was automatically configure my songs so always set it to manual option then you will not loose your...

Sometimes it happens due to a careless mistake
due to updates or automatic organising
so select the manual organising option
now the only solution is to put all your data again

All the best softwares are listed here
what more can i list
but still i can say that there's a new add-on for firefox called foxmarks.com which is a software one can install for adding bookmarks...

As far as my knowledge connecting to internet should not be a problem because of a virus, even if connected thru a wireless network. i use wirekess connection. its important you keep your antivirus...

That's a good method to carry out the hijacking process
but one can always keep the pop-up blocker on
and avoid such fake pop-ups