[Sony Xperia P, U, Sola, Go] geekygrl:
Firstly, SEARCH the forums and READ. I spent about 10 minutes and was able to find a lot of information about the question you are asking. The other thing is, if you don't know what something is or what it does, and more importantly, how to fix it when it breaks the rest of your phone DO NOT TOUCH!!

A lot of what you have listed isnt what I would consider all bloatware. Its Android system apps as well as definite bloatware. If you are after a completely stock experience devoid of bloat consider flashing CM9 (ICS) or CM10 (JB - experiemental at this stage though) as it will be safer than removing apps you don't know anything about :good:

Also, don't just delete any apps - use an app like Titanium or Rom Toolbox Pro to freeze apps - that way you can restore them if you need to do a factory data reset and start again since you are still on stock. If you just plan on flashing already modified ROM's make a nandroid backup of the stock rom and flash away.

My personal method for stopping any apps from running I don't need is with Root Explorer and I add .bak after the file or apk - that way its still there should I want to do a full factory reset without drama's and it prevents the app from unfreezing or causing problems by just removing it.

Before you do ANYTHING however, make a full nandroid backup of your system!

AntHalService - ANT+ service - heart rate monitors etc. Do not remove if you use such apps and addons.

AntStateNotifier - ANT+ service - heart rate monitors etc. Do not remove if you use such apps and addons.

ApplicationsProvider - Applications Service Provider (ASP) personally I would leave it

ChromeBookmarksSyncAdapter - Bookmarks Sync - only remove if you don't sync your bookmarks with Google.

Facelock - Security app - safer to leave installed.

FbCalendarSync - Xperia Facebook Integration - Only remove if you don't sync Calendar app with Facebook

FBIAppShare - Xperia Facebook Integration

FBMediaDiscovery - Xperia Facebook integration

FBMusicLike - Xperia Facebook Intergration

GoogleCalendarSyncAdapter - Calendar sync - Only remove if you don't sync Calender to Google server

GoogleContactsSyncAdapter - Contacts sync - Only remove if you don't sync Contacts to Google server

GoogleLyricsPlugin - Walkman plug in

GooglePartnerSetup - Unknown, safer to leave installed.

HTMLViewer - Unknown, safer to leave installed. (Depends on where you look as some say safe, others unsafe...your call)

Keychain - security app, from my understanding provideds method for managing certificates etc. Safer to leave installed.

LearningClient - Learns user typed words from keyboard, only remove if you don't use that function.

MediaProvider - Media storage, ringtones, music, notifications. Do Not Remove.

MediaUploader - Media uploads, but will cause errors with media playback (won't work) if disabled/removed. Do Not Remove.

NoiseField - Live Wallpaper

OMAClientProvisioning - OTA Network settings download. Safer to leave installed.

OMADownload - OTA Network settings download. Safer to leave installed.

OmaV1AgentDownloadServices - OTA Network Settings download. Safer to leave installed.

OneTimeInitializer - Unsure, but has something to do with Play Store. Safer to leave installed.

PhaseBeam - Live Wallpaper

PicoTts - SVOX Text to Speech - Only remove if you don't use navigation, translators etc.

PowerSaveModule - Unknown - Personally I have stopped it with no issues.

ReadyToRun - Unsure - Google/XDA Search reveals that its tied in with surface flinger and/or SMS message retention, either way safer to leave.

RemoteControlService - Decide for yourself: http://developer.sonymobile.com/2012/02/29/new-remote-control-service-on-xperia-smartphones-video/

SecureClockJava - web clock service needed by DRM

SemcClock - Clock and Alarm - Only remove if you want to use a third party clock and alarm app.

SemcCnapProvider - Required by System Do Not Remove - again, quick Google/XDA Search reveals this is tied in with baseband,dialing features.

SemcContactsProvider - Contacts Storage - Unsure, personally I would leave it, unless you use a third party app.

SemcDlna - Media Server

SemcDlnaHandover - Media Server

SemcMusic - Walkman

SemcPws - Unsure - Safer to leave

SemcSetupWizard - The initial startup screen when you first boot into your phone when its new or factory reset.

SemcTvLauncher - Connecting to TV

SemcVideo - Video Player

SettingsProvider - Stores your settings - Do Not Remove

Stk - Sim Tool Kit

Storefront - thirdparty apps installer, I have removed this without issue.

Tag - Used by NFC

Talk - Google Talk

TalkBack - Talkback - Accesibility Options - Personally I remove it.

More reading here: http://xdaforums.com/showthread.php?t=1089470 and http://xdaforums.com/showthread.php?t=1546253 and of course http://developer.android.com/reference/packages.html

Here is my list of apps I have succesfully 'frozen' without issue on my device. I sit happily with around 280-320mb of free ram (but in Android thats not such a big deal anyway as any unsued ram is just not doing anything.) I also have disabled fast-dormancy as my provider doesnt support it properly yet and having it on the device can cause battery drain problems. I don't use Timescape at all so its all removed. I also disable the following as well for fast-dormancy:

/system/etc/fast-dormancy

fd_custm_conf.txt
fd_ext_conf.txt
fd_int_conf.txt

/system/bin

fast-dormancy

EventStream
EventStreamPluginTwitter
facebook
fast-dormancy-incall
fast-dormancy-incall.odex
fast-dormancy-wakeup
FBCalendarSync
FBIAppShare
FBMediaDiscovery
FBMusicLike
FBSetupwizard
GenieWidget
helpapp
Home (Stock)
JapaneseIME
PlusOne
POBoxSknMono
POBoxSknPink
POBoxSknSelector
POBoxSknWood
PostViewer
retaildemo
SemcEmail
SEMCFacebookProxy
SemcPowerSaver
SEMCSetupWizard
SocialEngineCore
SocialEngineFacebookPlugin
SocialEnginePicassaPlugin
SocialPane-Apps
SocialPane-FeedWidget
SocialPane-FriendsWidget
SocialPane-StatusWisdget
storefront
talkback
textinput-chn
timescaperssplugin
TimescapeSpline
TwitterPostViewer
UpdateCentre
WapPush

Again best thing is, if you do not understand what something does leave it alone! As I found with a quick bit of searching many people have different opinions as to what actually constitutes 'bloatware' so don't follow blindly or you may brick your phone!!

I am not responsible for any errors, heartache, bricking, or otherwise problems you may have as a result of the above advice.