The internet has so much information that there's also a lot of useless information.
Literal
Internet [topic-は] information-volume [subject-が] large [reason-ので], unusable information [also-も] many exist.
情報量が多い 'the volume of information is large.' 使えない情報 'unusable/unreliable information.' A straightforward observation about information overload — relevant in any era, but especially prescient for early internet.