Which are the features of the most popular social web sites?

I saw famous social sites learn from each other and somehow copy features from each other. Is that legal? To make this question to the extreme extent, what will happen by entirely copying a site?

With millions of sites out there that are on the cutting edge of technology and only a handful of them are dominating the web, what websites have you found that have features and benefits not offered by the more popular websites? Maybe some of those...

The question is:Why does everyone keep telling us to restart our site from scratch and they will do a better job with it? Please look at our site and let us know your personal opinion (What you might do if it were your site) on whether or not, we are...

I'm evaluating hosted solutions to replace my in-house proprietary customer service solution for a collection of consumer-facing websites, specifically social and dating sites. What is a good hosted solution that will also allow me to extend internal...

I have been thinking of developing a social network web site for table top RPG gamers and I'd like to know what features might be attractive to potential users. Also, are there any existing sites that you already use?

I used to have a lot of fun doing some web design a few years back, and wanted to have some fun with it again. I took an html class in school but found the work a bit tedious, so I was happy when I discovered Dreamweaver ultra developer (5?). Obviously...

Hello, I am a young artist/ businessman/ web designer/ writer. Now, I've been looking high and low for a clean, reputable, website to post some of my less valuable works and though I have found a good number of art-sharing domains, very few of them have...

My household has suddenly found itself need of a new family-scale web-based planning/organization tool. This is tougher than it might sound as we (well, I) have some pretty twitchy technical requirements, thanks to my work's firewall rules. My wife and...

While I know there are technical advantages to having apps separate, but interlinked, I'm mainly wondering from a business/marketing perspective.  I run a web app, which has one free and one premium plan, that has a multitude of features related to a...