More Perl goodness...
I fixed those pesky ASP.NET blogs in my blogroll with this hum-dinger:
perl -pe "s!title=\"WebLogs @ ASP.NET\"
description=\".NETWeblogs by .NET Developers\" xmlurl=\"https://weblogs.asp.net/(.*?)/[rR]ss.aspx\"
htmlurl=\"https://weblogs.asp.net!title=\"$1's ASP.NET Blog\" htmlurl=\"https://weblogs.asp.net/$1!g;"
blogroll.opml > blogroll2.opml