I want to add a contact form in my wordpress blog. Which is the best plugin to do that??

Does the links from various social bookmarking sites helps SEO of a site? Or they don't provide any link juice.

Is it wise to create a separate site for mobile users or it will be better if I optimize my existing site to it? Share your opinions.

I am thinking about starting a forum by the side of blog to help my readers in our niche. Forum promotion is different from blog promotion and it takes time & money both do it right. If I had a budget say about $100 per month then how should I spend it. Considering the fact that I have already hired some people to post topics and discussions.

I have a query that if I want to get signups for my blogs then how can I filter them from random traffic? What is the best possible way to do that?

I see a lot of site owners who uses forums in their niche to get links from their signatures. Are those links really pass any link juice or they have no value?

Linkedin is a professionals platform. It is very likely that we use it for brand optimization and awareness. What are the methods that you guys use to do it. Please share.

ASP.NET Web Forms uses Page controller pattern approach for rendering layout. In this approach, every page has it's own controller i.e. code-behind file that processes the request. On the other hand, ASP.NET MVC uses Front Controller approach. In this approach a common controller for all pages, processes the requests.

Can anybody explain what is the meaning of mobile programming ads? I have been hearing this term a lot in the mobile advertising community but have no knowledge about it.

How many newsletters do you send to your subscribers per week? Share your experiences.