Ijack Splendid Jul 30, 2008 7,098 0 28,010 Aug 20, 2010 #2 USB modem with ADSL or analog modem with dial-up. (Or just spend $20 and buy an ethernet card.)
hang-the-9 Titan Mar 25, 2010 60,375 1,082 152,940 Aug 20, 2010 #3 ^+1 With no network interface, if you want broadband, you need a USB modem, although those connections are not very good. It's tough to fix them if there is an issue. This http://www.newegg.com/Product/Product.aspx?Item=N82E16833127102 should work well for you. If the PC does not have a built-in network jack it's probably old enough that a faster/better card would be wasted.
^+1 With no network interface, if you want broadband, you need a USB modem, although those connections are not very good. It's tough to fix them if there is an issue. This http://www.newegg.com/Product/Product.aspx?Item=N82E16833127102 should work well for you. If the PC does not have a built-in network jack it's probably old enough that a faster/better card would be wasted.