How do I search a spreadsheet for a list of URL's | then search those URL's for keywords | save the output? (Oh yeah..., and schedule it)

Question

Fist, I should mention I am not a programmer but am eagerly learning powershell!
I am looking for an automated solution to accomplish what I am currently doing manually.  I need a script that would combine the following:
Reach out to a list of websites (probably a loop of some sort since the list will come out of a spreadsheet which could contain 1 or 100 different sites)
Search each page for a specific word or words (not contained in the spreadsheet though that may make it more scalable)
Save the URL of the site(s) that contained the keywords to one text file (versus the multiple .html files I am creating today)
Have the output contain which words it found on which site.
If not overly complicated, I would like to schedule this to recur once a week.
A working script would be ideal, but even the resources that show me how to incorporate each element would suffice.
I have had success pulling down the full content of the listed pages and saving them to a directory, which requires manual intervention.
So far this works, but it's not scalable:
     Set-ExecutionPolicy RemoteSigned
     $web = New-Object Net.WebClient
     $web.DownloadString("http://sosomesite/54321.com") | Out-File "C:\savestuffhere\54321.html"
     $web.DownloadString("http://sosomesite/54321.com") | Out-File "C:\savestuffhere\65432.html"
     Get-ChildItem -Path "C:\savestuffhere\" -Include *.html -Recurse | Select-String -Pattern "Keyword 1"
In otherwords, I have to manually replace the "http://sosomesite/54321.com" and "C:\savestuffhere\54321.html" when the URL changes to .\65432.com and the output name to match.  That works fine when it's a couple sites, but again,
is not scalable.  
Then, to see if any of the saved file's contain the keyword(s), I have to search the directory for the keyword which I am using:
Get-ChildItem -Path "C:\savestuffhere\54321.html" -Include *.html -Recurse | Select-String -Pattern "Keyword 1"

Answer 1

Hi Sure-man,
Sorry for the delay reply.
To automatically Reach out to all urls, you can list all urls in a txt file "d:\urls.txt" like this:
http://sosomesite/54321.com
http://sosomesite/65432.com
Then please try the script below to save the URL of the site(s) that contained the keywords to one text file "d:\outputurls.txt":
$urls = get-content d:\urls.txt
foreach($url in $urls){
$results = $web.DownloadString("$url")
$matches = $results | Select-String -Pattern "keyword1","keyword2"
#Extract the text of the messages, which are contained in segments that look like keyword1 or keyword2.
if ($matches.Matches){
$Object = New-Object PSObject
$Object | add-member Noteproperty keyword $matches.Matches.value
$Object | add-member Noteproperty URL $url
$output+=$Object}
$output|Out-File d:\outputurls.txt
If you want to schduled this script in Task Scheduler once a week, please save the script above as .ps1 file, and follow this article:
Weekend Scripter: Use the Windows Task Scheduler to Run a Windows PowerShell Script
If I have any misunderstanding, please let me know.
I hope this helps.