Observing the www's evolution over the past 25 years, terrific gains have been made in usability, ease of (simple) programming and myriad tools to access the data we seek in a hurry.
Social networking has connected family, friends, and local and global interests/organizing in a way unthought of before the turn of the millennium.
The down/darker side includes ubiquitous spam-like ads delivered by search engine companies desperate to please investors by looking for a quick buck.
Sites have piled onboard and even the most prominent and seemingly dignified destinations have cheapened their content and reputations with tawdry Other Content You Might Like links to nefarious click gatherers the likes include Wait Til You See This Celebrity Now!!!!! ? garbage, in turn making infinitesimal profits on massive amounts of ads delivered by continuous slideshow clicks.
Yet even worse, mega companies have turned to the place where massive profits are guatanteed: the US taxpayer-funded defense industry which gives an unfathomable plethora of American dollars in return for surveillance privileges.
What's the harm in that? One, it's unconstitutional. Two, if anyone harbors a grudge against you, things could go very far south if an anonymous tip leads authorities start looking for something. When you search a person's 20 year history on the net with an intent and focus on finding evidence, you'll likely find something, even if it's not there! Even if it has to be created.
Less frightening, but just as invasive and disturbing, is the increasing evidence that companies—perhaps unwittingly, perhaps not—sell your data to unknown third parties. That data can include EVERY PAGE YOU'VE EVER VISITED whether you clicked on it by accident or not. From which data wranglers create a profile, reality based or not, to target you.