SharePoint 2010 - Creating a Site Collections By PowerShell

I found a blog, there are scripts for creating Farm, Web Application, Site Collection: http://blog.brianbeach.com (all credits to Brian). I want to write it here, like a reminder for myself. In addition, I think that the sharing knowledge is a best way to help to each other.

List of common templates:

STS#0 - Team Site

STS#1 - Blank Site

STS#2 - Document Workspace

MPS#0 - Basic Meeting Workspace

MPS#1 - Blank Meeting Workspace

MPS#2 - Decision Meeting Workspace

MPS#3 - Social Meeting Workspace

MPS#4 - Multipage Meeting Workspace

WIKI#0 - Wiki

BLOG#0 – Blog

$SiteName = "Human Resources Site"
$OwnerEmail = "USER_NAME@DOMAIN.com"
$OwnerAlias = "DOMAIN\USER_NAME"
$SiteURL = "http://intranet.DOMAIN.com/sites/hr"
$SiteTemplate = "STS#0"

Write-Host "Creating a relative site collection in the intranet web application"
New-SPSite -Url $SiteURL -owneralias $OwnerAlias -ownerEmail $OwnerEmail -Template $SiteTemplate
$Web = Get-SPWeb $SiteURL
$Web.title = $SiteName
$Web.update()

$WebAppURL = "http://intranet.DOMAIN.com"
$ContentDatabase = "Content_Intranet_BLOG"

Write-Host "Creating a new content database in the intranet web application"
New-SPContentDatabase $ContentDatabase -WebApplication $WebAppURL

$SiteName = "Intranet Blog"
$OwnerEmail = "USER_NAME@DOMAIN.com"
$OwnerAlias = "DOMAIN\USER_NAME"
$SiteURL = "http://intranet.DOMAIN.com/sites/blog"
$SiteTemplate = "BLOG#0"

Write-Host "Creating a relative site collection in the intranet web application with a separate content database"
New-SPSite -Url $SiteURL -owneralias $OwnerAlias -ownerEmail $OwnerEmail -ContentDatabase $ContentDatabase -Template $SiteTemplate
$Web = Get-SPWeb $SiteURL
$Web.title = $SiteName
$Web.update()

$SiteName = "Intranet WIKI"
$OwnerEmail = "USER_NAME@DOMAIN.com"
$OwnerAlias = "DOMAIN\USER_NAME"
$WebAppURL = "http://intranet.DOMAIN.com"
$SiteURL = "http://wiki.DOMAIN.com"
$SiteTemplate = "WIKI#0"

Write-Host "Creating a hostheader site collection in the intranet web application"
$WebApp = Get-SPWebApplication $WebAppURL
New-SPSite -url $SiteURL -HostHeaderWebApplication $WebApp -owneralias $OwnerAlias -ownerEmail $OwnerEmail -Template $SiteTemplate
$Web = Get-SPWeb $SiteURL
$Web.title = $SiteName
$Web.update()

$WebAppName = "Intranet Web Application"
$HostHeader = "wiki.DOMAIN.com"

Import-Module WebAdministration
New-WebBinding -Name $WebAppName -Port 80 -Protocol "http" -HostHeader $HostHeader