There is a huge list of social websites. Each social website provides its own social buttons. Since there are really no common standards for these social websites buttons, adding them on your website could be quite challenging. In order to add social media buttons to a website you need to understand how to align social buttons.
Add and align social buttons on blogs using plugins
If you own a blog then there is an easy option. Look for latest and best plugins available to use for your blog or CMS. These plugins would add and align social buttons for you quite easily. In order to get a list of plugins for a WordPress blog see this post Best WordPress plugins for new blogs
Add and align social buttons on websites using third party scripts
There are a few scripts provided by some third party websites that can do all the hard work for you. As an example addthis.com is one such website. These scripts are however sometimes too slow or do not provide enough options to manage the social buttons you may be interested in. You can try and check if this works good for your site.
Add and align social buttons using HTML directly
If you want to add each of these social buttons on the site yourself it could be little tricky when it comes to aesthetics as there is no common standard on how these buttons written or rendered. This causes issues on alignment of the social buttons.
A quick fix to align the social buttons is to use table html tag. The code below provides a sample using Plusone and Facebook. Table tag allows you to place each button in a separate column and then adjust it individually to align with other social buttons.
<table><tr> <td style="vertical-align: top;"> <fb:like href="" send="true" layout="button_count" width="100" show_faces="false" font="tahoma"></fb:like> </td> <td style="vertical-align: top;"> <g:plusone size="medium"></g:plusone> </td> </tr></table>
