Tell me if I am wrong.
Are these alerts triggered by

1)your computer trying to connect to
a193-108-153-14.deploy.akamaitechnologies.com

or

2)you get alerts because someone is trying to connect to your computer from
a193-108-153-14.deploy.akamaitechnologies.com

Case 1 is either a spyware or a trojan/virus, you need an updated antivirus and/or trojan scanner

I suggest :

AVG Antivirus
http://www.grisoft.com/us/us_index.php

Free Online Trojan Scan
http://www.trojanscan.com/

Free Trial Trojan Scanners
http://swatit.org/
http://www.misec.net/


Case 2 is probably a port scan/hack trial and since your firewall blocks it, they can't connect.

Additional questions:

What ports are being scanned?
What process is trying to connect?

As for good softwares, check my earlier post:
http://www.antionline.com/showthread...223#post651685


P.S. You don't really need an expert to figure what's going on...