Services for the first one have been around since the beginning. There are 3 or 4 instances of such web services, most notably http://useqwitter.com
The idea of [email protected] subscription is utilized by many admins who run mail servers and demand granular control over whitelists. I do it with couple of my domains that have catch-all.
Here's my idea you guys could steal. I'm giving it away for free. A social network where you connect people with their friends and relatives. Now go build it!
Unless it's a company that cures cancer over the internet, your startup isn't enriching anyone's life. "Capture eyeballs, monetize later" mantra has failed in almost all cases, save for few select companies who are just breaking even on momentum alone.
Media and publishing business are dying. What a strange example to illustrate a point.
Just because something is in high demand doesn't prove anything. There is high demand for homeopathic sugar pills and suburban shamans who charge $100/hr for consultation.
All those companies you've mentioned have huge problems which points them directly at the revenue streams they've bet on.
Facebook is taking a beating because they can't monetize the fastest growing mobile sector.
Google is desperately working against the clock to beat the bubble by branching out in all kinds of industries unrelated to AdSense
Yahoo has been bleeding money for a decade
Twitter is in the same position as Facebook sans the stock market pressure
...and Pandora has been charging monthly fees for a service because they've seen the writing on the wall.
No company on that list is doing anything exciting or disruptive that's tied to ads. It's a dead end.
Same was said about Sega. Controlling hardware consoles and nurturing brand new ecosystems is no longer a winning proposition in today's market. There's too much competition and title lifespans are shorter. By the time Nintendo releases a new gaming console it's already obsolete. They need to ship games, not cling to outdated models.
Count your blessings if it only bricked a handful of phones and forced users to fiddle with their devices to get them working again. At least it didn't install Windows Phone 7 Genuine Advantage.
Your request should really be "Please get rid of share buttons from websites"