Sass 3.3 adds a new SassScript Maps feature that's super handy.

_profile-links.scss

// Define those colors.

$profiles: (
	bandcamp: #4e9bac,
	delicious: #248cff,
	facebook: #3b5998,
	ficly: #b51c2c,
	flickr: #0063db,
	github: #4183c4,
	googleplus: #dd4b39,
	instagram: #517fa4,
	kickstarter: #76cc1e,
	lanyrd: #152e51,
	lastfm: #d51007,
	linkedin: #007bb6,
	photodrop: #cdb6e3,
	pinterest: #cb2027,
	rdio: #0088da,
	soundcloud: #f60,
	twitter: #00aced,
	vimeo: #aad450,
	youtube: #b00
);

// Style those links.

.profile-link {
	background: $grey--light;
	border-radius: em(3);
	display: block;
	padding: 0.75em 1em;
	text-decoration: none;

	&:focus,
	&:hover {
		color: #fff;
	}
}

// Style those links on :hover and :focus because we're not savages.

@each $profile, $bgcolor in $profiles {
	.profile-link--#{$profile}:focus,
	.profile-link--#{$profile}:hover {
		background: $bgcolor;
	}
}

index.html

<ol>
	<li><a href="#" class="profile-link--bandcamp profile-link">Bandcamp</a></li>
	<li><a href="#" class="profile-link--delicious profile-link">Delicious</a></li>
	<li><a href="#" class="profile-link--facebook profile-link">Facebook</a></li>
	<li><a href="#" class="profile-link--ficly profile-link">Ficly</a></li>
	<li><a href="#" class="profile-link--flickr profile-link">Flickr</a></li>
	<li><a href="#" class="profile-link--github profile-link">GitHub</a></li>
	<li><a href="#" class="profile-link--googleplus profile-link">Google+</a></li>
	<li><a href="#" class="profile-link--instagram profile-link">Instagram</a></li>
	<li><a href="#" class="profile-link--kickstarter profile-link">Kickstarter</a></li>
	<li><a href="#" class="profile-link--lanyrd profile-link">Lanyrd</a></li>
	<li><a href="#" class="profile-link--lastfm profile-link">Last.fm</a></li>
	<li><a href="#" class="profile-link--linkedin profile-link">LinkedIn</a></li>
	<li><a href="#" class="profile-link--photodrop profile-link">PhotoDrop</a></li>
	<li><a href="#" class="profile-link--pinterest profile-link">Pinterest</a></li>
	<li><a href="#" class="profile-link--rdio profile-link">Rdio</a></li>
	<li><a href="#" class="profile-link--soundcloud profile-link">SoundCloud</a></li>
	<li><a href="#" class="profile-link--twitter profile-link">Twitter</a></li>
	<li><a href="#" class="profile-link--vimeo profile-link">Vimeo</a></li>
	<li><a href="#" class="profile-link--youtube profile-link">YouTube</a></li>
</ol>

The above is an example of using Sass 3.3's new SassScript Maps feature. Documentation currently available right over here.

See this Gist in action at sixtwothree.org.

I've also written up a brief tutorial explaining the technique I used here.