The Web is overrun with dumb hashtags, chart-topping fart apps, and guys just waiting to show you their d*cks. But with this week’s launch of Twitter’s Tailored Trends , Facebook’s App Center , and Airtime’s safety net , some tech companies are fighting back. If you can’t get people to act smarter, at least you can hide their idiocy, and that’s what each of these products does.

With its new App Center , Facebook ranks applications by star ratings, but unlike Apple and Android’s app platforms, the social network relies on random sampling to gather these ratings. Currently there is no way for users to rate an app on demand.

This charming man, Todd Harrison , bought a used Apple II and some drives from Ebay and did what any self-respecting geek would do: he gave them the attention and respect they deserved, cleaning all the parts and getting it ready to run some BASIC again. The machines were in pretty rough shape.

A man in China bought a Samsung hard drive for about $35 on Taobao. He opened it up, plugged it in, and found that it wasn’t showing the full storage capacity on his computer. A few minutes later, he found out why – someone had replaced the innards with a bunch of nuts and bolts hotglued into the case.

Birchbox Men launched in early April.

The Start Fund, the consortium of top investors who are backing all Y Combinator companies, has a new partner: General Catalyst. The storied 12-year-old venture firm has already been busy expanding into Silicon Valley from its Boston home in recent years — and it has already gotten into around ten YC companies, including top ones like rental marketplace AirBnB and payments company Stripe. So the fund is a natural extension of the firm’s effort

Events have been a premier feature for Facebook even in its earliest iterations. A great tool for community organizing and brand promotion, Facebook Events can be utilized for both individual Facebook users and companies of all sizes. Optimize your Facebook Events with the June 2012 edition of the Facebook Marketing Bible: The Leading Resource for Marketing and Advertising on Facebook .

Google just announced that it is adding a few interesting new features to its Chrome Web Store , its store for free and paid web-based apps and browser extensions for its popular Chrome browser.

After spending last year engaged in a “tug-of-war” with Android over mobile ad impressions, iOS has been building a big lead in the past few months, according to a new report from mobile marketing company Velti . Velti’s past reports pegged iOS share of mobile ad impressions at 53 percent in March , which increased to 55 percent in April , and now to 59 percent in May. The report also points out the strong performance of the iPod Touch, which received 14.9 percent of total ad impressions — not just more than any Android device, but also more than the iPad

ReverbNation has added a new option to its Facebook ad tool to allow music artists to target users who have listened to similar artists on streaming services like Spotify. ReverbNation’s Promote It platform simplifies Facebook advertising by framing campaigns in a way that relates specifically to artists. For example, instead providing a number of complex targeting options, as Facebook’s self-serve tool does, Promote It simply asks artists to “name five artists whose fans might like your music.” Now in addition to targeting users who have listed those artists as Likes or interests, Promote It will target users who have recently listened to them on Spotify, Rdio, Rhapsody, Deezer or Myspace.